Auto rename

[mpivchev]

NextcloudKit PR: https://github.com/nextcloud/NextcloudKit/pull/99

Adds auto renaming functionality.

• For sharing files and uploading files:

  • If it's a single file:

    1. Attempts to rename it automatically
    2. If not possible, show a rename prompt

  • If multiple files:

    1. Attempt to rename all files
    2. If any can't be renamed, cancel upload for them and show an error.
    3. The valid files are still uploaded

• For dragging and dropping:

  1. Attempt to rename all files
  2. If any can't be renamed, cancel upload for them and show an error.
  3. The valid files are still uploaded

Examples:

https://github.com/user-attachments/assets/0ba44fb6-ff38-41b0-9094-2aa7b0e81ed9

https://github.com/user-attachments/assets/edeb6627-c859-49fc-9496-f52d3a2d932b

[marinofaggiana]

Please rebase