Grab extension repo detail from repo.json and include in DB (#506)

* WIP Extension Repo DB Support

* Wired in to extension screen, browse settings screen

* Detekt changes

* Ui tweaks and open in browser

* Migrate ExtensionRepos on Update

* Migration Cleanup

* Slight cleanup / error handling

* Update ExtensionRepo from Repo.json during extension search.
Added Manual refresh in extension repos page.

* Split repo fetching into separate API module, major refactor work

* Removed development strings

* Moved migration to #3

* Fixed rebase

* Detekt changes

* Added Replace Repository Dialog

* Cleanup, removed platform specific code, PR comments

* Removed extra function, reverted small change

* Detekt cleanup

* Apply suggestions from code review

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

* Fixed error introduced in cleanup

* Tweak for multiline when

* Moved getCount() to flow

* changed getCount to non-suspend, used property delegation

* Apply suggestions from code review

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

* Fixed formatting with updated comment string

* Big wave of PR comments, renaming/other tweaks

* onOpenWebsite changes

* onOpenWebsite changes

* trying to make single line

* Renamed ExtensionRepoApi.kt to ExtensionRepoService.kt

---------

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -134,6 +134,8 @@ class MainActivity : BaseActivity() {
             Migrations.upgrade(
                 context = applicationContext,
                 preferenceStore = Injekt.get(),
+                sourcePreferences = Injekt.get(),
+                extensionRepoRepository = Injekt.get(),
             )
         } else {
             false