Move `Create merge request` action to top of page in issues and incidents
<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=378018) </details> <!--IssueSummary end--> ### Issue The `Create merge request` action is on the same row as emojis, after the description. - This creates alignment issues depending on screen width/number of applied emojis - If there aren't any emojis, the button is floating by itself on the right side of the page, looking sort of out of place (especially since it's a `confirm` button) - The emojis and `Create merge request` aren't actually related to each other, yet their placement makes it seem like they are ### Proposal Move `Create merge request` to top of page (I haven't worked out the details yet :sweat_smile:) <img src="/uploads/d34d83371c933bf39a94132e642bd03b/Screen_Shot_2022-10-14_at_2.29.08_PM.png" width="400px">
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