Merge dev to main for v0.5.10

[Natuworkguy]

Hotfix release v0.5.10.

• The conversation sits in a rounded panel inset from the window, with the sidebar sharing the window's colour
• Recent chats are grouped under their projects, on a thin guide line, and each project folds away
• The current chat has a tinted, outlined highlight that glides between rows
• Folder suggestions in the project form are a proper dropdown under the field: type ~/D for Desktop, Documents, and Downloads, Tab to go into one
• The message box shows an accent focus ring
• Fix the cursor light drawing a line across the import memory prompt when it scrolls

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[github-actions]

⚠️ This PR targets main but does not have the release label. Regular PRs should target dev.