Update Requests option to Membership Requests

[Ratul-Saha-003]

What kind of change does this PR introduce? Refactoring

Issue Number: Fixes #1926

Did you add tests for your changes? Already present(updated tests)

Snapshots/Videos:

If relevant, did you update the documentation? Updating Documentation isn't required

Summary Changed the Requests option to Membership Requests in multiple places.

Does this PR introduce a breaking change? No

Other information None

Have you read the contributing guide? Yes

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[Ratul-Saha-003]

@palisadoes Could I get a review on this PR?

[Cioppolo14]

@Ratul-Saha-003 Please fix the failing tests.

[Ratul-Saha-003]

@Ratul-Saha-003 Please fix the failing tests.

I have added another PR for the failing tests as I had to change the name of the branch.