Inherit from OEmbedProviderBase in OEmbed providers (#12379)

* Use OEmbedProviderBase

* Use QueryHelpers.AddQueryString in .NET Core

* Nullable value

* Cleanup usings

* Ensure invariant string

* No need to URL encode when using QueryHelpers.AddQueryString()

* Include WebUtilities

* Cleanup usings

* Revert "Include WebUtilities"

This reverts commit 3cffb740cee8f11bd83cd6e753fba1a04575e5d2.

* Revert "No need to URL encode when using QueryHelpers.AddQueryString()"

This reverts commit 70ca5306ac9343c8825dba48ebd75180b5fd0ecf.

* Revert "Ensure invariant string"

This reverts commit 318ab23f6f2c4605308d767a4e65e7ceb286cebe.

* Revert "Nullable value"

This reverts commit c39911de06812620a08800a1cb72e1197d9972cc.

* Revert to StringBuilder

* Cleanup usings

* Add more descriptions of providers

src/Umbraco.Core/Media/EmbedProviders/DailyMotion.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO (V10): change base class to OEmbedProviderBase
-public class DailyMotion : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Dailymotion the popular online video-sharing platform.
+/// </summary>
+public class DailyMotion : OEmbedProviderBase
 {
     public DailyMotion(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Flickr.cs

@@ -4,8 +4,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Flickr : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Flickr the popular online image hosting and video hosting service.
+/// </summary>
+public class Flickr : OEmbedProviderBase
 {
     public Flickr(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/GettyImages.cs

@@ -2,8 +2,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class GettyImages : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Getty Images supplier of stock images, editorial photography, video and music for business and consumers.
+/// </summary>
+public class GettyImages : OEmbedProviderBase
 {
     public GettyImages(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Giphy.cs

@@ -5,8 +5,7 @@ namespace Umbraco.Cms.Core.Media.EmbedProviders;
 /// <summary>
 ///     Embed Provider for Giphy.com the popular online GIFs and animated sticker provider.
 /// </summary>
-/// TODO(V10) : change base class to OEmbedProviderBase
-public class Giphy : EmbedProviderBase
+public class Giphy : OEmbedProviderBase
 {
     public Giphy(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Hulu.cs

@@ -2,8 +2,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Hulu : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Hulu the the popular online subscription streaming service.
+/// </summary>
+public class Hulu : OEmbedProviderBase
 {
     public Hulu(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Issuu.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Issuu : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Issuu the popular platform to create interactive flipbooks, social media posts, GIFs, and more from a single piece of static content.
+/// </summary>
+public class Issuu : OEmbedProviderBase
 {
     public Issuu(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Kickstarter.cs

@@ -2,8 +2,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Kickstarter : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Kickstarter the popular online crowdfunding platform focused on creativity.
+/// </summary>
+public class Kickstarter : OEmbedProviderBase
 {
     public Kickstarter(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Slideshare.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Slideshare : EmbedProviderBase
+/// <summary>
+///     Embed Provider for SlideShare for professional online content including presentations, infographics, documents, and videos.
+/// </summary>
+public class Slideshare : OEmbedProviderBase
 {
     public Slideshare(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/SoundCloud.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Soundcloud : EmbedProviderBase
+/// <summary>
+///     Embed Provider for SoundCloud the popular online audio distribution platform and music sharing provider.
+/// </summary>
+public class Soundcloud : OEmbedProviderBase
 {
     public Soundcloud(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Ted.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Ted : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Ted that posts talks online for free distribution.
+/// </summary>
+public class Ted : OEmbedProviderBase
 {
     public Ted(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Twitter.cs

@@ -2,8 +2,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Twitter : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Twitter the popular online service for microblogging and social networking.
+/// </summary>
+public class Twitter : OEmbedProviderBase
 {
     public Twitter(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Vimeo.cs

@@ -3,8 +3,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class Vimeo : EmbedProviderBase
+/// <summary>
+///     Embed Provider for Vimeo the popular online video hosting, sharing, and services platform provider.
+/// </summary>
+public class Vimeo : OEmbedProviderBase
 {
     public Vimeo(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)

src/Umbraco.Core/Media/EmbedProviders/Youtube.cs

@@ -2,8 +2,10 @@ using Umbraco.Cms.Core.Serialization;
 
 namespace Umbraco.Cms.Core.Media.EmbedProviders;
 
-// TODO(V10) : change base class to OEmbedProviderBase
-public class YouTube : EmbedProviderBase
+/// <summary>
+///     Embed Provider for YouTube the popular online video sharing and social media platform provider.
+/// </summary>
+public class YouTube : OEmbedProviderBase
 {
     public YouTube(IJsonSerializer jsonSerializer)
         : base(jsonSerializer)