Add file system and git operations to the Timeline panel in the Web IDE
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## Problem to solve
Once you make a commit in the Web IDE Beta, you are presented with a success message in a modal notification. If you dismiss this notification, it is not easy to figure out how to create an MR from your current branch.
## Proposal
Use the Timeline panel to track operations made to the file system and repository.

If we could see, for example `Changes committed` in this list, and a right-click contextual menu showed options to create an MR or view the commit in GitLab.
issue