Display approval status on merge request listings
### Problem to solve The problem is that it is difficult to see at a glance which requests have been approved and which are still waiting for review. ### Further details Our team uses the merge requests view to see what merge requests are currently waiting to be reviewed. Often there are a large number of approved requests that are still waiting to be merged. ### Proposal I currently see 2 possibilities for improving the usability here: 1. Display an icon / tag on the listing of each MR to show whether the MR is approved or not 2. Add a search filter for whether an MR is approved. ### What does success look like, and how can we measure that? Success can be determined by the ability to quickly assess when which MRs require review and which do not. ### Links / references
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