closing db cursor

src/backend_flask/app.py

@@ -256,6 +256,7 @@ def api_get_frames():
     frames = []
     for ent in cur[:QUERY_LIMIT]:
         frames += frames_from_db_entry(ent)  # pre-process this step for prod TODO
+    cur.close()
 
     # filter by relevant hw
     frames = [x for x in frames if x.hw == hw]
@@ -308,6 +309,7 @@ def api_get_functor_frames():
     frames = []
     for ent in cur[:QUERY_LIMIT]:
         frames += frames_from_db_entry(ent)  # pre-process this step for prod TODO
+    cur.close()
 
     # filter by relevant functor
     frames = [x for x in frames if functor in x.get_functors()]