Support external repos

Largely taken from SY.

Co-authored-by: jobobby04 <jobobby04@users.noreply.github.com>

app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsBrowseScreen.kt

@@ -2,16 +2,22 @@ package eu.kanade.presentation.more.settings.screen
 
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.ReadOnlyComposable
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalContext
 import androidx.fragment.app.FragmentActivity
+import cafe.adriel.voyager.navigator.LocalNavigator
+import cafe.adriel.voyager.navigator.currentOrThrow
 import eu.kanade.domain.source.service.SourcePreferences
+import eu.kanade.presentation.category.repos.RepoScreen
 import eu.kanade.presentation.more.settings.Preference
 import eu.kanade.tachiyomi.util.system.AuthenticatorUtil.authenticate
 import kotlinx.collections.immutable.persistentListOf
 import tachiyomi.core.i18n.stringResource
 import tachiyomi.i18n.MR
+import tachiyomi.presentation.core.i18n.pluralStringResource
 import tachiyomi.presentation.core.i18n.stringResource
+import tachiyomi.presentation.core.util.collectAsState
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 
@@ -24,7 +30,11 @@ object SettingsBrowseScreen : SearchableSettings {
     @Composable
     override fun getPreferences(): List<Preference> {
         val context = LocalContext.current
+        val navigator = LocalNavigator.currentOrThrow
+
         val sourcePreferences = remember { Injekt.get<SourcePreferences>() }
+        val reposCount by sourcePreferences.extensionRepos().collectAsState()
+
         return listOf(
             Preference.PreferenceGroup(
                 title = stringResource(MR.strings.label_sources),
@@ -33,6 +43,13 @@ object SettingsBrowseScreen : SearchableSettings {
                         pref = sourcePreferences.hideInLibraryItems(),
                         title = stringResource(MR.strings.pref_hide_in_library_items),
                     ),
+                    Preference.PreferenceItem.TextPreference(
+                        title = stringResource(MR.strings.label_extension_repos),
+                        subtitle = pluralStringResource(MR.plurals.num_repos, reposCount.size, reposCount.size),
+                        onClick = {
+                            navigator.push(RepoScreen())
+                        },
+                    ),
                 ),
             ),
             Preference.PreferenceGroup(