Make dict moving faster and save scroll location

[Kuuuube]

Somewhat of a fix for #1092.

Adds a stripped down synchronous version of _updateEntries that also resets the scroll position.

Moving dicts doesn't require all of what _updateEntries uses since the number of dicts, dict names, dict contents, etc should never be changed in a move.

Intentionally not adding the scroll position reset to _updateEntries since during other operations there can be other errors that the user needs to see at the top of the modal body.

[github-actions]

Playwright test results

 2 failed
 3 passed

Details

 5 tests across 4 suites
 8 minutes, 33 seconds
 f3dff02

Failed tests

chromium › integration.spec.js › anki add
chromium › visual.spec.js › visual

[codspeed-hq]

CodSpeed Performance Report

Merging #1671 will not alter performance

_{Comparing Kuuuube:better-dict-moving (638ff02) with master (68a5979)}

Summary

✅ 3 untouched benchmarks