Fix: Fixed issue where compatibility settings weren't working (#11348)

Author: ferrariofilippo

src/Files.App/ViewModels/Properties/CompatibilityProperties.cs

@@ -160,12 +160,11 @@ public void GetCompatibilityOptions()
 		{
 			var options = FileOperationsHelpers.ReadCompatOptions(ExePath);
 
-			if (options is not null)
-				CompatibilityOptions = CompatibilityOptions.FromString(options);
+			CompatibilityOptions = CompatibilityOptions.FromString(options);
 		}
 
 		public bool SetCompatibilityOptions()
-			=> FileOperationsHelpers.SetCompatOptions(ExePath, CompatibilityOptions?.ToString());
+			=> FileOperationsHelpers.SetCompatOptions(ExePath, CompatibilityOptions.ToString());
 
 		public Task RunTroubleshooter()
 			=> LaunchHelper.RunCompatibilityTroubleshooterAsync(ExePath);

src/Files.Shared/CompatibilityOptions.cs

@@ -30,7 +30,7 @@ public override string ToString()
 			return System.Text.RegularExpressions.Regex.Replace(value.Trim(), @"\s+", " ");
 		}
 
-		public static CompatibilityOptions FromString(string rawValue)
+		public static CompatibilityOptions FromString(string? rawValue)
 		{
 			var compatOptions = new CompatibilityOptions();
 			if (!string.IsNullOrEmpty(rawValue))