Add filter by extension repository

[Character95]

Describe your suggested feature

Filtering extensions by repository...

Other details

No response

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• [X] I have written a short but informative title.
• [X] I have updated the app to version 0.16.5.
• [X] I will fill out all of the requested information in this form.