Removed timezone information from columns. Time will be stored in UTC coordinates.

Moved to Sqlalchemy 1.4 model and SessionFuture.

Upgraded to Angular 12

Upgraded the python dependencies

overlord/src/environments/environment.ts

@@ -16,4 +16,4 @@ export const environment = {
  * This import should be commented out in production mode because it will have a negative impact
  * on performance if an error is thrown.
  */
-// import 'zone.js/dist/zone-error';  // Included with Angular CLI.
+// import 'zone.js/plugins/zone-error';  // Included with Angular CLI.