Integration in Mixplorer

### Please agree to the following

- [X] I have searched [existing issues](https://github.com/cryptomator/android/issues?q=) for duplicates
- [X] I agree to follow this project's [Code of Conduct](https://github.com/cryptomator/android/blob/develop/.github/CODE_OF_CONDUCT.md)

### Summary

Cryptomator extension to access encrypted files directly from Mixplorer.

### Motivation

Merging Cryptomator's encryption with MiXplorer directly addresses a need for secure, efficient file management on Android. This integration would offer Cryptomator's reliable encryption within MiXplorer's feature-rich environment, simplifying secure cloud file access and management. It's a practical move towards enhancing privacy with minimal disruption to user workflow, likely to be well-received by both the developer community and privacy-conscious users.

### Considered Alternatives

Alternatives would be to encrypt files with Mixplorer encryption feature but that is slow, tedious, and requires significant user interaction.

### Anything else?

_No response_