Gsoc 2023 migrating calendar fragment to compose

[narendraanjana09]

Fixes #39

Changes :
Migrated Calendar Screen to Jetpack Compose

Previous UI:

New UI Screen recording:

https://github.com/AOSSIE-Org/Agora-Android/assets/60137237/7bb118d9-d81f-43f1-9e3b-f8b971900559

Appetize App Link
https://appetize.io/app/d7wqeezvl3ynuojmq2fgpxgow4?device=pixel4&osVersion=11.0&scale=75

[hackeramitkumar]

LGTM