Summary

We have the Profile popups for users and groups displayed on hover in the main feed, but not in the sidebar. Let's add the same hover behavior for the sidebar, with added pin tools.

Current group profile

Changes

1. Display group profiles when hovering the groups in the sidebar.
2. “Hide posts” link makes no sense in the sidebar, so let's change it for “Pin/Un-pin” toggle so that group would be pinned or un-pinned from the sidebar group list. When toggle is clicked, group does not move until UI is reloaded/updated.