Refactored the bridge to use load the JVM in a separate Isolate that receives messages in a queue executing them, this way it doesn't block the UI thread

lib/jni_isolate_message.dart

@@ -0,0 +1,35 @@
+class JniIsolateMessage {
+  final int id;
+  final JniIsolateMessageType type;
+  final Map<String, dynamic> args;
+
+  JniIsolateMessage({required this.id, required this.type, required this.args});
+}
+
+class JniIsolateResponse {
+  final int id;
+  final dynamic results;
+
+  JniIsolateResponse({required this.id, this.results});
+}
+
+class JniIsolateError {
+  final int id;
+  final String error;
+  final String stackTrace;
+
+  JniIsolateError({required this.id, required this.error, required this.stackTrace});
+}
+
+enum JniIsolateMessageType {
+  getAnimeSearchResults,
+  getMangaSearchResults,
+  getEpisodeList,
+  getChapterList,
+  getVideoList,
+  getPageList,
+  loadAnimeExtension,
+  loadMangaExtension,
+  unloadAnimeExtension,
+  unloadMangaExtension,
+}