Add the prompt_dialog dependency

Got removed when rebasing

Author: Jesse Clemens

pubspec.yaml

@@ -23,6 +23,7 @@ dependencies:
   path_provider: '^2.1.3'
   pref: '^2.8.0'
   prefs: '^4.1.0+3'
+  prompt_dialog: '^1.0.16'
   provider: '^6.1.2'
   scrollable_positioned_list: '^0.3.8'
   share_plus: '^9.0.0'