chore: improve number widget tests (#2223)

cypress/utils/README.md

@@ -0,0 +1,9 @@
+## Utilities for integration tests
+
+Utils in this dir must be explicitly included in each spec file, e.g.:
+
+```
+import '../utils/dismiss-local-backup';
+```
+
+For routines to be executed on all tests, please use the `cypress/plugins.index.js` file instead: https://docs.cypress.io/guides/core-concepts/writing-and-organizing-tests.html#Plugin-files