Hitting Enter right after entering a search filter doesn't select the first entry in table(s)

[marco-miller]

1. Run trace-server.
2. Provision it with a trace or an experiment.
3. Run extension's yarn start:browser.
4. Browse to http://localhost:3000/.
5. Open the provisioned trace from the Trace Viewer.
6. Select the Events (or any other) Table for that trace.
7. Enter a Search filter in any one of the table columns.
8. Hit Enter right after entering the few filter characters.
9. Notice the wrong (non-first filtered) table entry being selected.

[marco-miller]

#860 was merged, now this is not perfectly fixed yet, despite that PR's fixes contribution. -But at least the UX should be much better, with it all in -now.