refactor(App, navigation): migrate to Expo Router and clean up navigation structure

- Updated App entry point to utilize Expo Router, simplifying the navigation setup.
- Removed legacy navigation components and services to streamline the codebase.
- Adjusted package.json to reflect the new entry point and updated dependencies for compatibility.
- Enhanced overall application structure by consolidating navigation logic and improving maintainability.

app/(app)/group/[groupId]/index.tsx

@@ -0,0 +1,5 @@
+import { GroupInfoScreen } from '../../../../src/screens/message';
+
+export default function GroupInfoRoute() {
+  return <GroupInfoScreen />;
+}

app/(app)/group/[groupId]/members.tsx

@@ -0,0 +1,5 @@
+import { GroupMembersScreen } from '../../../../src/screens/message';
+
+export default function GroupMembersRoute() {
+  return <GroupMembersScreen />;
+}

app/(app)/group/create.tsx

@@ -0,0 +1,5 @@
+import { CreateGroupScreen } from '../../../src/screens/message';
+
+export default function CreateGroupRoute() {
+  return <CreateGroupScreen />;
+}

app/(app)/group/invite.tsx

@@ -0,0 +1,5 @@
+import GroupInviteDetailScreen from '../../../src/screens/message/GroupInviteDetailScreen';
+
+export default function GroupInviteRoute() {
+  return <GroupInviteDetailScreen />;
+}

app/(app)/group/join.tsx

@@ -0,0 +1,5 @@
+import { JoinGroupScreen } from '../../../src/screens/message';
+
+export default function JoinGroupRoute() {
+  return <JoinGroupScreen />;
+}

app/(app)/group/request.tsx

@@ -0,0 +1,5 @@
+import GroupRequestDetailScreen from '../../../src/screens/message/GroupRequestDetailScreen';
+
+export default function GroupRequestRoute() {
+  return <GroupRequestDetailScreen />;
+}