feat(frontend): upload/download files and folders

[amanape]

Summary

Extend the frontend file explorer to support uploading and downloading files and folders (resolves #1379)

Todo

• [x] User can upload directories via input
  • Because of the nature of the input element with file-handling, we have to create a separate input for uploading files, and another for folders. For this, I implemented a dropdown when clicking the upload icon, that prompts the user to select the type of upload.
• [ ] User can upload file/directory via drag-and-drop
• [ ] User can download selected files/directories (ZIP?)

Any suggestions or additional requirements are welcomed

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes are missing coverage. Please review.

:exclamation: No coverage uploaded for pull request base (main@00c0eda). Click here to learn what that means.

Files	Patch %	Lines
opendevin/server/listen.py	0.00%	9 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1718   +/-   ##
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  Coverage        ?   64.29%           
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  Files           ?       99           
  Lines           ?     4055           
  Branches        ?        0           
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  Hits            ?     2607           
  Misses          ?     1448           
  Partials        ?        0           

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