Merge branch 'v10/dev' into v10/contrib

# Conflicts:
#	src/Umbraco.Core/EmbeddedResources/Lang/en.xml
#	src/Umbraco.Core/EmbeddedResources/Lang/en_us.xml

src/Umbraco.Core/Extensions/StringExtensions.cs

@@ -1327,11 +1327,8 @@ public static class StringExtensions
     /// <param name="path"></param>
     /// <returns></returns>
     // From: http://stackoverflow.com/a/35046453/5018
-    public static bool IsFullPath(this string path) =>
-        string.IsNullOrWhiteSpace(path) == false
-        && path.IndexOfAny(Path.GetInvalidPathChars().ToArray()) == -1
-        && Path.IsPathRooted(path)
-        && Path.GetPathRoot(path)?.Equals(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal) == false;
+    // Updated from .NET 2.1+: https://stackoverflow.com/a/58250915
+    public static bool IsFullPath(this string path) => Path.IsPathFullyQualified(path);
 
     // FORMAT STRINGS