- Instead of capturing snapshots on demand, we now stream them
from each frame every 100ms.
- Certain actions can also force snapshots at particular moment using
"checkpoints".
- Trace viewer is able to show the page snapshot at a particular
timestamp, or using a "checkpoint" snapshot.
- Small optimization to not process stylesheets if CSSOM was not used.
There still is a lot of room for improvement.
fix(trace viewer): updating default traceStorageDir value
When `npx playwright show-trace <tracePath>` command is executed, without providing the `resources` optional parameter, the function expected the `traceStorageDir` default value to be the same directory as in which the tracePath resides. This change updates it to the `dirname(tracePath)/trace-resources` if it exists. Such a directory hirerachy is the default that is created when running the tracer in Playwright.
