The goal of the PR is to unify the File and the Asset type, which was previously vaguely implemented to a common Client supported type, RNFile. This can be imported directly from the LLC and used in the SDK and by integrators as well.
The following are the changes and bug fixes in the PR:

• Unify the File and Asset type to RNFile.
• Unifying FileUpload and ImageUpload type to a common FileUpload type. This can be removed in future once we utilize the full capability of the new message composer. We can have everything as a LocalAttachment post upload and send the message.
• The FileUpload type is now a lot simplified compared to what it was before.
• Now, the image compression logic is improved as we do the compression a long time before we upload the file.
• I have introduced optional parameters on uploadNewFile; this is for the case where, for audio voice recordings, we do send the type, which cannot be really derived from the mime_type. We can remove it once we finally move to the message composer completely imo.
• The important change is the native handlers are now unified on the types of key they return from all the upload related APIs.

NOTE: The PR is tested on all the upload modes for native CLI/expo android/iOS.