Audit and unify menu options for Edit/Code menus
<!--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> - [Label this issue](https://contributors.gitlab.com/manage-issue?action=label&projectId=278964&issueIid=587269) </details> <!--IssueSummary end--> ## Proposal Across repository and code review pages, the menu options vary. We should audit and simplify/unify the options. For example how we call the action to edit a single file | Edit in Rapid Diffs (not in prod, gdk only) | Edit on Blob/Repo | | ------ | ------ | | ![image](/uploads/bf832dfd9b4c64345bb95e1c13f20586/image.png){width=596 height=306} | ![image](/uploads/55615300680ab3a00ad2f0c3ee35a5f7/image.png){width=561 height=600} | ### Related - https://gitlab.com/gitlab-org/gitlab/-/issues/585815 - https://gitlab.com/groups/gitlab-org/-/epics/18457#note_3024208867
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