[GSoC] Write documentation for files

[literalEval]

Below mentioned files are modified but no documentation is provided as of now. This issue serves as a checklist for them to be tracked.

• lib/views/after_auth_screens/feed/organization_feed.dart
• lib/views/after_auth_screens/join_org_after_auth/access_request_screen.dart
• lib/views/after_auth_screens/join_org_after_auth/join_organisation_after_auth.dart
• lib/views/after_auth_screens/profile/profile_page.dart
• lib/widgets/custom_avatar.dart
• lib/widgets/post_container.dart
• lib/widgets/post_detailed_page.dart
• lib/widgets/post_list_widget.dart
• lib/widgets/post_widget.dart

[Ayush0Chaudhary]

Wrote the documentation for the following files. Issue was created by me in this PR

It was a big PR so missed some files.

[github-actions]

This issue did not get any activity in the past 10 days and will be closed in 180 days if no update occurs. Please check if the develop branch has fixed it and report again or close the issue.

[palisadoes]

@literalEval

1. Please create individual issues for this so that others can work on them quickly.
2. Provide instructions as to how the documentation should be written too.

[Ayush0Chaudhary]

@literalEval

1. Please create individual issues for this so that others can work on them quickly.
2. Provide instructions as to how the documentation should be written too.

I wrote the documentation already

#2016