update flask route code for SPA entry routes

compendium_v2/routes/default.py

@@ -41,13 +41,10 @@ VERSION_SCHEMA = {
 def after_request(resp):
     return common.after_request(resp)
 
-
-@routes.route('/', methods=['GET'])
-@routes.route('/about', methods=['GET'])
-@routes.route('/analysis', methods=['GET'])
-@routes.route('/funding', methods=['GET'])
-@routes.route('/report', methods=['GET'])
-def index():
+# https://flask.palletsprojects.com/en/2.0.x/patterns/singlepageapplications/
+@routes.route('/', defaults={'path': ''}, methods=['GET'])
+@routes.route('/<path:path>', methods=['GET'])
+def index(path):
     return render_template('index.html')