update plugin's package.json

Summary:
For all plugins:
- move static fields `title`, `id` and `icon` to `package.json`
- adds "bugs" field for all plugins containing links to support groups/oncalls.

Reviewed By: priteshrnandgaonkar

Differential Revision: D13417286

fbshipit-source-id: 7b341176915f3ed7b473b95c1d879f21d7d634ef

src/plugins/shared_preferences/index.js

@@ -83,9 +83,6 @@ const RootColumn = styled(FlexColumn)({
 });
 
 export default class extends FlipperPlugin<SharedPreferencesState> {
-  static title = 'Shared Preferences Viewer';
-  static id = 'Preferences';
-
   state = {
     selectedPreferences: null,
     sharedPreferences: {},