Root installation, update dependencies & more default repositories

[machiav3lli]

This PR include:

• Updating the dependencies, Kotlin, Gradle and AGP
• Raising target- and compileSDK to 31 and add needed permissions
• Add root installation method
• Add 23 default repository
• True black as background in dark theme

[Madis0]

Are you sure the owner agrees with all your additions and it is easy to discern them? It might be a better idea to split the features into different PRs

[machiav3lli]

Are you sure the owner agrees with all your additions and it is easy to discern them? It might be a better idea to split the features into different PRs

In #102 I try to explain my position to the maintaining of the project. Eventually I'd consider those changes as a first step in direction co-maintaining the project. If such is not wished/wanted I'd be starting an independent fork.

[RickyM7]

@machiav3lli If you are really going to continue this project in a new fork, please talk here, as I want to follow this project, after all Foxy Droid is the best F-Droid client in my opinion.

[NoahAndrews]

Note that adding a bunch of new repositories to the defaultRepositories list is not good enough to make them available to existing users, because that list only gets referenced when the database is first created (not just updated):

foxy-droid/src/main/kotlin/nya/kitsunyan/foxydroid/database/Database.kt

Lines 24 to 27 in d7b3476

	if (helper.created) {
	for (repository in Repository.defaultRepositories) {
	RepositoryAdapter.put(repository)
	}

New code needs to be added that is capable of adding default repositories only if they aren't already in the database (including if they are in the database, but marked as deleted).

BTW, I'm the developer of a sort of Foxy Droid fork myself. While the Driver Hub Software Manager has very different goals from Foxy Droid, I have implemented some functionality (such as updating all apps with a single button press) that could be useful to Foxy Droid users.

[3504k]

For the love of FOSS and all things holy in this world, I pray in the name of Izzy to all the open source gods to please make a usable fork of this project.

[another-sapiens]

@3504k Droid-ify!