feat: Make export debug logs copy to clipboard instead

[oSumAtrIX]

Feature description

Make export debug logs copy to clipboard instead:

Motivation

In most cases you need to copy logs to some other place, not upload a file.

Acknowledgements

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