"Add share link from Nextcloud files" allow uploads #12305
Description
Is your feature request related to a problem? Please describe.
The usual email workflow is to write an email and then add attachments. The "Add share link from Nextcloud files" option, which IMO should be heavily promoted (leaner emails, more secure file sharing), lacks an upload option forcing the user to first upload his attachments via the files app and then attach them to an email.
Describe the solution you'd like
Add an "Upload new" option in the filepicker sidebar which reveals a file drop area and saves any files to the user's /Email Attachments folder and auto-attaches any dropped files.
Describe alternatives you've considered
No response