* Unifies the filename suffix to .test.js
* Display @babel/no-invalid-this rule for tx-controller.test.js
* Add test file extension to test:unit:global
* Add popover for informing user about the connected status indicator
* Ensure user only sees connected status info popover once
* Default connectedStatusPopoverHasBeenShown to true and set it to false in a migration
* Add unit test for migration 42
* Initialize AppStateController if it does not exist in migration 42
* Update connect indicator popup locale text
* Code cleanup for connected-indicator-info-popup
* Code cleanup for connected-indicator-info-popup