Move RootPickerDialog and prohibit adding a new root if there is already a root inside

Move [RootPickerDialogFragment](https://github.com/ARK-Builders/ARK-Navigator/blob/main/app/src/main/java/dev/arkbuilders/navigator/presentation/dialog/RootPickerDialogFragment.kt) here from Navigator
The functionality of the [RootPickerDialogFragment](https://github.com/ARK-Builders/ARK-Navigator/blob/main/app/src/main/java/dev/arkbuilders/navigator/presentation/dialog/RootPickerDialogFragment.kt) and the [ArkFilePickerViewModel.pinFile()](https://github.com/ARK-Builders/ark-android/blob/aa70a3ee2733cbd026b43939b558fbe4cc46e116/components/src/main/java/dev/arkbuilders/components/filepicker/ArkFilePickerViewModel.kt#L182) are the same. In fact, we can add root/favorite from two different places. We need to reuse the general logic and prohibit adding root if there is already a root inside.
We also need to prohibit adding device root as ARK root.