GitHub Integration - Link to closed issues / PRs

[kyle-ssg]

How are you running Flagsmith

• Self Hosted with Docker
• Self Hosted with Kubernetes
• SaaS at flagsmith.com
• Some other way (add details in description below)

Describe the bug

When trying to associate our flags with GH issues I found that I couldn't

Steps To Reproduce

Attempt to find "Add meta data fields to core entities"

Expected behavior

• I can link the feature
• With a lot of features it might be difficult to find the right one, searching for #id would be ideal
• We should be able to see an indication of whether the issue / PR is closed/open

Screenshots

[novakzaballa]

The UI is designed to search only for open issues, but there were plans in the future to add a filter to search for closed issues or both.