Revert "Use app scoped CoroutineScope (#3403)"

This reverts commit 509eee5dfb.

Fixes #3429

app/src/main/java/eu/kanade/tachiyomi/source/AndroidSourceManager.kt

@@ -5,14 +5,16 @@ import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.extension.ExtensionManager
 import eu.kanade.tachiyomi.source.online.HttpSource
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
-import tachiyomi.core.common.util.lang.launchIO
 import tachiyomi.domain.source.model.StubSource
 import tachiyomi.domain.source.repository.StubSourceRepository
 import tachiyomi.domain.source.service.SourceManager
@@ -24,7 +26,6 @@ import java.util.concurrent.ConcurrentHashMap
 
 class AndroidSourceManager(
     private val context: Context,
-    private val scope: CoroutineScope,
     private val extensionManager: ExtensionManager,
     private val sourceRepository: StubSourceRepository,
 ) : SourceManager {
@@ -34,6 +35,8 @@ class AndroidSourceManager(
 
     private val downloadManager: DownloadManager by injectLazy()
 
+    private val scope = CoroutineScope(Job() + Dispatchers.IO)
+
     private val sourcesMapFlow = MutableStateFlow(ConcurrentHashMap<Long, Source>())
 
     private val stubSourcesMap = ConcurrentHashMap<Long, StubSource>()
@@ -41,7 +44,7 @@ class AndroidSourceManager(
     override val sources: Flow<List<Source>> = sourcesMapFlow.map { it.values.toList() }
 
     init {
-        scope.launchIO {
+        scope.launch {
             extensionManager.installedExtensionsFlow
                 .collectLatest { extensions ->
                     val mutableMap = ConcurrentHashMap<Long, Source>(
@@ -64,7 +67,7 @@ class AndroidSourceManager(
                 }
         }
 
-        scope.launchIO {
+        scope.launch {
             sourceRepository.subscribeAll()
                 .collectLatest { sources ->
                     val mutableMap = stubSourcesMap.toMutableMap()
@@ -95,9 +98,9 @@ class AndroidSourceManager(
     }
 
     private fun registerStubSource(source: StubSource) {
-        scope.launchIO {
+        scope.launch {
             val dbSource = sourceRepository.getStubSource(source.id)
-            if (dbSource == source) return@launchIO
+            if (dbSource == source) return@launch
             sourceRepository.upsertStubSource(source.id, source.lang, source.name)
             if (dbSource != null) {
                 downloadManager.renameSource(dbSource, source)