Add pending merge request badge count

[SyedMa3]

Closes #6811

Feature - Added a bubble to the avatar and then a entry + bubble into the sub-navigation within the hamburger.

Technical

• The bubble is only visible when admin/super-librarians have atleast one pending merge requests.

Testing

https://gist.github.com/jimchamp/dd83ae3fe1ea86ae9621707fa96b4edf Execute these commands and you can see the bubble.

Screenshot

Avatar Hamburger List

Stakeholders

[mekarpeles]

Thanks for submitting this contribution!

[SyedMa3]

@mekarpeles What does it mean by Needs: Submitter Input? Do I need to specify something? This is my first open source contribution so I don't know the process.

[jimchamp]

@mekarpeles What does it mean by Needs: Submitter Input? Do I need to specify something? This is my first open source contribution so I don't know the process.

Staff members typically add the Needs: Submitter Input label to PRs that have been reviewed, but need some changes from the contributor. I think that we didn't notice that you pushed the requested changes, and added the label in error. Apologies!

[jimchamp]

Noticed a few small improvements that could be made since I last reviewed this. Those changes have been committed. Thanks for your contribution, @SyedMa3!

[SyedMa3]

@jimchamp Thanks for patiently helping and suggesting improvements.