[DRAFT] Use kotatsu-parsers directly for source mapping

[PhantomShift]

Use the kotatsu-parsers library directly for getting relevant sources instead of attempting to scrape the information.

For future reference, getting the list of all sources is theoretically as simple as calling EnumSet.allOf(MangaParserSource::class.java), though how Rust-Kotlin/Java communication will be achieved is yet to be decided. At a certain point it may be worthwhile to rewrite the conversion logic in Kotlin to reduce redundancy and overhead and improve (re)usability on Android.