#5876 Switched file decryption priority to be original file extension

[MarlowBrown]

Contributor checklist

• [x] My commits are rebased on the latest main branch
• [x] My commits are in nice logical chunks
• [x] My contribution is fully baked and is ready to be merged as is
• [x] I have tested my contribution on these devices:

• iPhone 16, iOS 18.2

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Description

This PR fixes #5876 by changing the file decryption priority to be the files original extension instead of the detected files mime type.

However I do see some value in decrypting the file as its mime type to see the raw file; I think losing the ability to send the file to the respective application its used for comes second to that. Perhaps in the future the UI/UX will be redesigned to accommodate path viewing the raw file and being able to use the original files extension.

https://github.com/user-attachments/assets/9c3c14a2-14e1-4759-a00e-aacb2e53d9be