This update adds unit tests for key Obox components – discover_obox, obox_report_action, and the json_tags_field widget. These tests enhance the reliability and stability of the Obox functionality, reducing the risk of future issues and improving overall product quality.

This commit adds unit tests for the following:
- `client_actions/discover_obox.js`
- `client_actions/obox_report_action.js`
- `widgets/json_tags_field.js`