OMHD-349: Dropbox delete

[maciekBudzinski]

Summary

This PR adds support for dropbox soft delete.

Demo

https://github.com/openmobilehub/android-omh-storage/assets/23010554/4c05473f-bfd5-48d2-afad-48a80836af21

Checklist:

• [x] Documentation is up to date to reflect these changes
• [x] Created Unit tests

Closes: OMHD-349