Improved live loading of test run output

We've improved the way live running tests and passed tests load in mabl.

For live running tests, you'll now see a larger message with information about the test running in the cloud with some helpful tips below. You'll no longer see every screenshot immediately as the test is running, but you can still jump into a single step to view the screenshot and diagnostic info for that step just by clicking on it.

For passed tests, you'll now see a message that your test has passed without issues. Click into specific steps to view any visual changes, network errors, or screenshots captured in that step. Failed tests will continue to load the final state of the app when opened.