feat: Use external storage when storage is full

[Rwje]

Feature description

Please add a feature to change the directory for performing operations

Motivation

For performing operations in a directory in memory card when internal phone storage is full

Acknowledgements

• [x] I have checked all open and closed feature requests and this is not a duplicate.
• [ ] I have chosen an appropriate title.
• [x] The feature request is only related to ReVanced Manager.