Moved simple edit button to avoid covering text

[daniele-verducci]

Fix #3241
Fix #2852
Rework of PR #3246

OP PR fixed the reported problems but introduced a crash (in a piece of code not related to the change), so it couldn't be merged as-is. Details on this: #3246 (comment)
I merged it to this branch, fixed the crash and placed in review so hopefully it can be merged and the two issues closed.

🖼️ Screenshots

Please see original PR here: #3246

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔙 Backport requests are created or not needed: /backport to stable-xx.x
• 📅 Milestone is set
• 🌸 PR title is meaningful (if it should be in the changelog: is it meaningful to users?)

🤖 AI (if applicable)

• The content of this PR was partly or fully generated using AI

[codacy-production]

Up to standards ✅

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[github-actions]

APK file: https://github.com/nextcloud/notes-android/actions/runs/33185717500/artifacts/9691892672
To test this change/fix you can simply download above APK file and install and test it in parallel to your existing Nextcloud app.
(please click on link to get QR code displayed)