Add loading icon for python test discovery

[eleanorjboyd]

Currently, when tests are being discovered and populated in the test result panel there is no icon to signal that the tests are loading into the panel. This is especially important for large repos where the user might worry about whether it is working or not. This can also help people know if their tests are discovered or if they need to redo their args so they know once discovery is finished.

The video is an example of what happens when it is loading- these are two examples one is when the extension is still loading and one is when the reload button is hit and the tests are populating.

Currently looking for ideas on what this icon could look like and if this idea in general would be useful to users.

really-long-pause-discovery.mov

loading-post-discovery.mov

[github-actions]

Thanks for the feature request! We are going to give the community 60 days from when this issue was created to provide 7 👍 upvotes on the opening comment to gauge general interest in this idea. If there's enough upvotes then we will consider this feature request in our future planning. If there's unfortunately not enough upvotes then we will close this issue.

[brettcannon]

Thank you for submitting your feature request and everyone who considered it! Unfortunately, this issue did not receive enough votes over the allotted time, and so we are closing the issue.