Feature: Add App to F-Droid

[Kusoneko]

Type

Other

Issue

The app isn't currently available on F-Droid.

Feature

The app would be available in the default F-Droid repository. for download.

Additional context

This is a bit of a very late continuation of #130 and https://gitlab.com/fdroid/fdroiddata/-/merge_requests/13506 (real life got in the way of me finishing that at that specific point, but I'm trying to get it done now)

I will submit a WIP PR with the changes requested by the F-Droid devs, at least the ones I can figure out how to do. There is still the issue of reproducible builds, but currently their major issue is apparently the Version Code issue, which is gonna be an unfortunate breaking change. I actually tried to get it to happen without having to do this in this repo but it apparently the F-Droid recipe parser didn't like my attempt at making a clever shell command to change it only on the F-Droid build.

Acknowledgements

• I have searched the existing issues and this is a new and no duplicate or related to another open issue.