Group membership change propegation

Summary

Closes #2228 (closed)

This MR makes it so that when joining, leaving, creating and destroying a group, the sidebar updates without the user having to refresh.

Steps to test

Create and Delete

1. Log in.
2. Create a new group.
3. Check the sidebar has the new group without you having to reload.
4. Delete the group, it should now be gone.

Leave and Join

1. Join a group that you are not an admin of.
2. Leave the group - it should now be gone from the sidebar.
3. Rejoin, it should be back.

Estimated Regression Scope

GroupsService, The group sidebar have been the main focus of this change, most of the logical changes are in there.

I've also touched two other areas due to errors flooding my console when testing:

Avatar component, the only change is an extra condition in an if statement, so I don't see much of an issue with that but note it has been touched.

Other than that some changeDetection was added to the videochat component.

added StatusRequires Changes + 1 deleted label

added 7 commits

• f0812700...52608901 - 6 commits from branch master
• 20ca45a7 - Merge branch 'master' of gitlab.com:minds/front into fix/group-membership-propegation-2228

Compare with previous version

added 1 commit

• ee302228 - Update sidebar-markers.component.ts

Compare with previous version

resolved all threads

approved this merge request

added 1 deleted label and removed StatusRequires Changes label

approved this merge request

merged

mentioned in commit df2e25e3