Feature/v2/filemanagerimprovements (#4243)

- Select all/deselect all
- Delete Selected
- Download  Selected
- Recent file delete -> menu button with drop down for delete and
download
- Shift click selection added
<img width="1220" height="751"
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src="https://github.com/user-attachments/assets/976e42cc-2124-4e62-83a8-25f184e8da3b"
/>
<img width="1160" height="749"
alt="{2D2F4876-7D35-45C3-B0CD-3127EEEEF7B5}"
src="https://github.com/user-attachments/assets/6879a174-a135-41f4-a876-984e7c2f96e2"
/>

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Co-authored-by: Connor Yoh <connor@stirlingpdf.com>