Fix: Fixed invalid "Network folder error" when opening shell folders (#11886)

Author: hishitetsu

src/Files.App/Filesystem/Drives.cs

@@ -91,7 +91,9 @@ public static async Task<StorageFolderWithPath> GetRootFromPathAsync(string devi
 					return new StorageFolderWithPath(matchingDrive, rootPath);
 				}
 			}
-			else if (devicePath.StartsWith(@"\\", StringComparison.Ordinal)) // Network share
+			// Network share
+			else if (devicePath.StartsWith(@"\\", StringComparison.Ordinal) &&
+				!devicePath.StartsWith(@"\\SHELL\", StringComparison.Ordinal))
 			{
 				int lastSepIndex = rootPath.LastIndexOf(@"\", StringComparison.Ordinal);
 				rootPath = lastSepIndex > 1 ? rootPath.Substring(0, lastSepIndex) : rootPath; // Remove share name

src/Files.App/ViewModels/ItemViewModel.cs

@@ -1478,6 +1478,7 @@ public async Task<int> EnumerateItemsFromStandardFolderAsync(string path, Cancel
 			bool isWslDistro = App.WSLDistroManager.TryGetDistro(path, out _);
 			bool isNetwork = path.StartsWith(@"\\", StringComparison.Ordinal) &&
 				!path.StartsWith(@"\\?\", StringComparison.Ordinal) &&
+				!path.StartsWith(@"\\SHELL\", StringComparison.Ordinal) &&
 				!isWslDistro;
 			bool enumFromStorageFolder = isBoxFolder;