feat(widget): add monthly calendar grid

[wipu25]

Type of change(s)

• Bug fix
• Feature / enhancement
• Infrastructure / tooling (CI, build, deps, tests)
• Documentation

What changed and why

• add grid to monlty calendar widget
• separate fragment month widget grid and normal without grid since grid can't be add later on in RemoteViews
• update config to have widgetShowGrid to pass from config to widgetMonthly grid state

Tests performed

• tested with real devices that monthly calendar have grid select option and work as expected

Before & after preview

Annotation	Screenshot
Widget config screen
Monthly calendar with grid
Monthly calendar without grid

Closes the following issue(s)

• Closes Monthly widget does not have a Grid #406

Checklist

• I read the contribution guidelines.
• I manually tested my changes on device/emulator (if applicable).
• I updated the "Unreleased" section in CHANGELOG.md (if applicable).
• I have self-reviewed my pull request (no typos, formatting errors, etc.).
• I understand every change in this pull request.

[naveensingh]

Thanks.