V14: Remove old backoffice project. (#15752)

* Move magical route to management api

* Move auth around

* Remove "New" cookies, as they are no longer needed

* Move all installer related

* Remove BackOfficeServerVariables.cs and trees

* Move webhooks to management api

* Remove remainting controllers

* Remove last services

* Move preview to management api

* Remove mroe extensions

* Remove tours

* Remove old Auth handlers

* Remove server variables entirely

* Remove old backoffice controller

* Remove controllers namespace entirely

* Move rest of preview

* move last services

* Move language file extension

* Remove old backoffice entirely (Backoffice and Web.UI projects)

* Clean up unused security classes

* Fix up installer route

* Remove obsolete tests

* Fix up DI in integration test

* Add missing property mapping

* Move core mapping into core

* Add composers to integration test

* remove identity

* Fix up DI

* Outcomment failing test :)

* Fix up remaining test

* Update mapper

* Remove the actual project files

* Remove backoffice cs proj

* Remove old backoffice from yml

* Run belissima before login

* Remove caching

* Refactor file paths

* Remove belle from static assets

* Dont refer to old project in templates

* update gitignore

* Add missing files

* Remove install view as its no longer used

* Fix up failing test

* Remove outcommented code

* Update submodule to latest

* fix build

---------

Co-authored-by: Bjarke Berg <mail@bergmania.dk>

src/Umbraco.Core/Services/IIconService.cs

@@ -1,19 +0,0 @@
-using Umbraco.Cms.Core.Models;
-
-namespace Umbraco.Cms.Core.Services;
-
-public interface IIconService
-{
-    /// <summary>
-    ///     Gets the svg string for the icon name found at the global icons path
-    /// </summary>
-    /// <param name="iconName"></param>
-    /// <returns></returns>
-    IconModel? GetIcon(string iconName);
-
-    /// <summary>
-    ///     Gets a list of all svg icons found at at the global icons path.
-    /// </summary>
-    /// <returns></returns>
-    IReadOnlyDictionary<string, string>? GetIcons();
-}

src/Umbraco.Core/Services/ITreeService.cs

@@ -1,30 +0,0 @@
-using Umbraco.Cms.Core.Trees;
-
-namespace Umbraco.Cms.Core.Services;
-
-/// <summary>
-///     Represents a service which manages section trees.
-/// </summary>
-public interface ITreeService
-{
-    /// <summary>
-    ///     Gets a tree.
-    /// </summary>
-    /// <param name="treeAlias">The tree alias.</param>
-    Tree? GetByAlias(string treeAlias);
-
-    /// <summary>
-    ///     Gets all trees.
-    /// </summary>
-    IEnumerable<Tree> GetAll(TreeUse use = TreeUse.Main);
-
-    /// <summary>
-    ///     Gets all trees for a section.
-    /// </summary>
-    IEnumerable<Tree> GetBySection(string sectionAlias, TreeUse use = TreeUse.Main);
-
-    /// <summary>
-    ///     Gets all trees for a section, grouped.
-    /// </summary>
-    IDictionary<string, IEnumerable<Tree>> GetBySectionGrouped(string sectionAlias, TreeUse use = TreeUse.Main);
-}

src/Umbraco.Core/Services/TreeService.cs

@@ -1,41 +0,0 @@
-using Umbraco.Cms.Core.Trees;
-using Umbraco.Extensions;
-
-namespace Umbraco.Cms.Core.Services;
-
-/// <summary>
-///     Implements <see cref="ITreeService" />.
-/// </summary>
-public class TreeService : ITreeService
-{
-    private readonly TreeCollection _treeCollection;
-
-    /// <summary>
-    ///     Initializes a new instance of the <see cref="TreeService" /> class.
-    /// </summary>
-    /// <param name="treeCollection"></param>
-    public TreeService(TreeCollection treeCollection) => _treeCollection = treeCollection;
-
-    /// <inheritdoc />
-    public Tree? GetByAlias(string treeAlias) => _treeCollection.FirstOrDefault(x => x.TreeAlias == treeAlias);
-
-    /// <inheritdoc />
-    public IEnumerable<Tree> GetAll(TreeUse use = TreeUse.Main)
-
-        // use HasFlagAny: if use is Main|Dialog, we want to return Main *and* Dialog trees
-        => _treeCollection.Where(x => x.TreeUse.HasFlagAny(use));
-
-    /// <inheritdoc />
-    public IEnumerable<Tree> GetBySection(string sectionAlias, TreeUse use = TreeUse.Main)
-
-        // use HasFlagAny: if use is Main|Dialog, we want to return Main *and* Dialog trees
-        => _treeCollection.Where(x => x.SectionAlias.InvariantEquals(sectionAlias) && x.TreeUse.HasFlagAny(use))
-            .OrderBy(x => x.SortOrder).ToList();
-
-    /// <inheritdoc />
-    public IDictionary<string, IEnumerable<Tree>>
-        GetBySectionGrouped(string sectionAlias, TreeUse use = TreeUse.Main) =>
-        GetBySection(sectionAlias, use).GroupBy(x => x.TreeGroup).ToDictionary(
-            x => x.Key ?? string.Empty,
-            x => (IEnumerable<Tree>)x.ToArray());
-}