Fix text overflow in flag import dialog (#608)

Bloxstrap/UI/Elements/Menu/Pages/FastFlagEditorPage.xaml.cs

@@ -271,14 +271,17 @@ private void ImportJSONButton_Click(object sender, RoutedEventArgs e)
 
  if (conflictingFlags.Any())
  {
- var result = Controls.ShowMessageBox(
- "Some of the flags you are attempting to import already have set values. Would you like to overwrite their current values with the ones defined in the import?\n" +
+ int count = conflictingFlags.Count();
+
+ string message = "Some of the flags you are attempting to import already have set values. Would you like to overwrite their current values with the ones defined in the import?\n" +
  "\n" +
- "Conflicting flags:\n" +
- String.Join(", ", conflictingFlags),
- MessageBoxImage.Question,
- MessageBoxButton.YesNo
- );
+ $"There are {count} conflicting flag definitions:\n" + 
+ String.Join(", ", conflictingFlags.Take(25));
+
+ if (count > 25)
+ message += "...";
+
+ var result = Controls.ShowMessageBox(message, MessageBoxImage.Question, MessageBoxButton.YesNo);
 
  overwriteConflicting = result == MessageBoxResult.Yes;
  }