fix(Core): make FileExistAction.Ask non-fatal

Author: BrycensRanch

SnapX.Core/Job/TaskHelpers.cs

@@ -443,7 +443,7 @@ public static void SaveImageAsFile(Image img, TaskSettings taskSettings, bool ov
             switch (taskSettings.ImageSettings.FileExistAction)
             {
                 case FileExistAction.Ask:
-                    throw new NotImplementedException("FileExistAction.Ask not implemented");
+                    new NotImplementedException("FileExistAction.Ask not implemented").ShowError();
                     break;
                 case FileExistAction.UniqueName:
                     filePath = FileHelpers.GetUniqueFilePath(filePath);

SnapX.Core/Utils/Extensions/Extensions.cs

@@ -224,7 +224,6 @@ public static PointF Restrict(this PointF point, RectangleF rect)
     public static void ShowError(this Exception e, bool fullError = true)
     {
         var error = fullError ? e.ToString() : e.Message;
-        // TODO: Remove all calls of this function. It shows that they're still handling UI concerns.
         DebugHelper.WriteException(error);
     }