Various smaller issues

[holtwick]

Bugs:

• [ ] macOS: Open .onepile file that is already connected to a workspace should only activate the workspace and not add a duplicate reference to the sync locations
• [ ] iOS shows attachments as well
• [ ] iOS cannot add attachments to notes
• [ ] iOS and macOS add Start text recognition and Delete recognized text buttons (to info?)
• [ ] Embedded document's menus are missing

Small features:

• [ ] Show "since" in date fields (right float, gray)
• [ ] Show comments in list entries
• [ ] Show thumbnails in list previews

[github-actions[bot]]

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