remove index app and replace index route inside __init__

app/__init__.py

@@ -197,14 +197,12 @@ def create_app():
 
     cache.init_app(app)
 
-    from app.routes.app import bp as app_bp
     from app.routes.topics import bp as topics_bp
     from app.routes.threads import bp as threads_bp
     from app.routes.users import bp as users_bp
     from app.routes.guides import bp as guides_bp
     from app.routes.mod import bp as mod_bp
     from app.routes.posts import bp as posts_bp
-    app.register_blueprint(app_bp)
     app.register_blueprint(topics_bp)
     app.register_blueprint(threads_bp)
     app.register_blueprint(users_bp)
@@ -328,6 +326,11 @@ def create_app():
             return {'error': 'forbidden'}, e.code
         else:
             return render_template('common/403.html'), e.code
+
+    @app.get('/')
+    def index():
+        return redirect(url_for('topics.all_topics'))
+
     #
     # @app.errorhandler(413)
     # def _handle_413(e):

app/routes/app.py

@@ -1,6 +0,0 @@
-from flask import Blueprint, redirect, url_for, render_template
-bp = Blueprint('app', __name__, url_prefix = '/')
-
-@bp.get('/')
-def index():
-    return redirect(url_for('topics.all_topics'))