Support filtering of repositories in RHS

[mickmister]

For the four RHS categories, it would be awesome if the user could use a select dropdown at the top of the RHS to choose a given repository to filter on the different items shown. The select options would only consist of the ones related to the items shown.

[Kshitij-Katiyar]

Hey @wiggin77, Do you think we should work on this as this feature would be helpful
?