refactor: split backend by context instead of type 'controllers/models/...'

app/favicons/routes/favicons_routes.ts

@@ -0,0 +1,10 @@
+import router from '@adonisjs/core/services/router';
+const FaviconsController = () =>
+	import('#favicons/controllers/favicons_controller');
+
+/**
+ * Favicon routes
+ */
+router.group(() => {
+	router.get('/favicon', [FaviconsController, 'index']).as('favicon');
+});

app/favicons/routes/routes.ts

@@ -0,0 +1 @@
+import './favicons_routes.js';