Block: try merging effects

[ellatrix]

Description

Currently there's a useEffect and useLayoutEffect to set focus on the block. I'm curious to see if any tests will fail if we take away useLayoutEffect.

I also merged the effect setting focus for multi selection.

How has this been tested?

Screenshots

Types of changes

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR. .

[youknowriad]

It seems to work as intended.

[ellatrix]

Thanks! I also merged the multi-selection focus effect.

[ellatrix]

Looks like this will make typing another 4% faster.

Your branch is up to date with 'origin/master'.
Ellas-MacBook-Pro:gutenberg ella$ npm run test-performance

> gutenberg@7.2.0 test-performance /Users/ella/gutenberg
> wp-scripts test-e2e --config packages/e2e-tests/jest.performance.config.js

 PASS  packages/e2e-tests/specs/performance/performance.test.js (20.601s)
  Performance
    ✓ 1000 paragraphs (17754ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        20.704s
Ran all test suites.

Average time to load: 4506ms
Average time to DOM content load: 4468ms
Average time to type character: 31.105ms
Slowest time to type character: 73ms
Fastest time to type character: 17ms
		
Ellas-MacBook-Pro:gutenberg ella$ git checkout -
M	packages/e2e-tests/config/setup-test-framework.js
Switched to branch 'try/merge-block-effects'
Ellas-MacBook-Pro:gutenberg ella$ npm run test-performance

> gutenberg@7.2.0 test-performance /Users/ella/gutenberg
> wp-scripts test-e2e --config packages/e2e-tests/jest.performance.config.js

 PASS  packages/e2e-tests/specs/performance/performance.test.js (20.276s)
  Performance
    ✓ 1000 paragraphs (17473ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        20.381s, estimated 21s
Ran all test suites.

Average time to load: 4568ms
Average time to DOM content load: 4270ms
Average time to type character: 29.76ms
Slowest time to type character: 112ms
Fastest time to type character: 17ms