Handle tap on insert button in FXTemplateForm
fixed a bug where the app would crash when guessing a class name
Merge branch 'feature/fix_issue_255' into develop

* feature/fix_issue_255:
  fixed a bug where the app would crash when guessing a class name
Merge branch 'feature/handle_insert' into develop

* feature/handle_insert:
  Handle tap on insert button in FXTemplateForm