🚨 [DO NOT MERGE] React 17 Upgrade Exploration 🚨

[kuasha420]

Summary

Addresses issue:

• N/A

Relevant technical choices

TBD - PR Created for running tests on CI. DO NOT MERGE

PR Author Checklist

• My code is tested and passes existing unit tests.
• My code has an appropriate set of unit tests which all pass.
• My code is backward-compatible with WordPress 5.2 and PHP 7.4.
• My code follows the WordPress coding standards.
• My code has proper inline documentation.
• I have added a QA Brief on the issue linked above.
• I have signed the Contributor License Agreement (see https://cla.developers.google.com/).

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Code Reviewer Checklist

• Run the code.
• Ensure the acceptance criteria are satisfied.
• Reassess the implementation with the IB.
• Ensure no unrelated changes are included.
• Ensure CI checks pass.
• Check Storybook where applicable.
• Ensure there is a QA Brief.

Merge Reviewer Checklist

• Ensure the PR has the correct target branch.
• Double-check that the PR is okay to be merged.
• Ensure the corresponding issue has a ZenHub release assigned.
• Add a changelog message to the issue.

[github-actions]

Build files for ab56dca are ready:

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[github-actions]

Size Change: -146 kB (-8.12%) ✅

Total Size: 1.65 MB

Filename	Size	Change
./dist/assets/js/googlesitekit-activation-********************.js	20.2 kB	-3.59 kB (-15.1%)	👏
./dist/assets/js/googlesitekit-ad-blocking-recovery-********************.js	64 kB	-7.35 kB (-10.31%)	👏
./dist/assets/js/googlesitekit-adminbar-********************.js	30.3 kB	-4.2 kB (-12.17%)	👏
./dist/assets/js/googlesitekit-api-********************.js	7.85 kB	-2.12 kB (-21.23%)	🎉
./dist/assets/js/googlesitekit-components-gm2-********************.js	5.26 kB	-705 B (-11.82%)	👏
./dist/assets/js/googlesitekit-components-gm3-********************.js	8.2 kB	-1.91 kB (-18.88%)	👏
./dist/assets/js/googlesitekit-data-********************.js	1.83 kB	-523 B (-22.26%)	🎉
./dist/assets/js/googlesitekit-datastore-forms-********************.js	7.02 kB	-1.93 kB (-21.55%)	🎉
./dist/assets/js/googlesitekit-datastore-location-********************.js	1.5 kB	-583 B (-28%)	🎉
./dist/assets/js/googlesitekit-datastore-site-********************.js	16.4 kB	-3.9 kB (-19.19%)	👏
./dist/assets/js/googlesitekit-datastore-ui-********************.js	7.89 kB	-2.02 kB (-20.38%)	🎉
./dist/assets/js/googlesitekit-datastore-user-********************.js	21 kB	-5.04 kB (-19.34%)	👏
./dist/assets/js/googlesitekit-entity-dashboard-********************.js	75 kB	-7.98 kB (-9.62%)	👏
./dist/assets/js/googlesitekit-main-dashboard-********************.js	142 kB	-12.3 kB (-7.94%)	✅
./dist/assets/js/googlesitekit-modules-ads-********************.js	28.8 kB	-3.96 kB (-12.08%)	👏
./dist/assets/js/googlesitekit-modules-adsense-********************.js	112 kB	-12.9 kB (-10.3%)	👏
./dist/assets/js/googlesitekit-modules-analytics-4-********************.js	151 kB	-17.9 kB (-10.55%)	👏
./dist/assets/js/googlesitekit-modules-********************.js	18 kB	-4.09 kB (-18.48%)	👏
./dist/assets/js/googlesitekit-modules-pagespeed-insights-********************.js	20.6 kB	-1.87 kB (-8.33%)	✅
./dist/assets/js/googlesitekit-modules-reader-revenue-manager-********************.js	19.2 kB	-2.46 kB (-11.36%)	👏
./dist/assets/js/googlesitekit-modules-search-console-********************.js	53 kB	-5.62 kB (-9.58%)	👏
./dist/assets/js/googlesitekit-modules-tagmanager-********************.js	27.1 kB	-4.95 kB (-15.48%)	👏
./dist/assets/js/googlesitekit-notifications-********************.js	16.4 kB	-2.08 kB (-11.24%)	👏
./dist/assets/js/googlesitekit-polyfills-********************.js	231 B	-146 B (-38.73%)	🎉
./dist/assets/js/googlesitekit-settings-********************.js	74.5 kB	-8.47 kB (-10.21%)	👏
./dist/assets/js/googlesitekit-splash-********************.js	79.8 kB	-9.55 kB (-10.69%)	👏
./dist/assets/js/googlesitekit-user-input-********************.js	56.4 kB	-6.67 kB (-10.59%)	👏
./dist/assets/js/googlesitekit-vendor-********************.js	321 kB	-151 B (-0.05%)
./dist/assets/js/googlesitekit-widgets-********************.js	80.2 kB	-5.32 kB (-6.22%)	✅
./dist/assets/js/googlesitekit-wp-dashboard-********************.js	55.9 kB	-5.81 kB (-9.41%)	✅
./dist/assets/js/runtime-********************.js	1.3 kB	-3 B (-0.23%)

ℹ️ View Unchanged

Filename	Size
./dist/assets/css/googlesitekit-admin-css-********************.min.css	57.5 kB
./dist/assets/css/googlesitekit-adminbar-css-********************.min.css	11.8 kB
./dist/assets/css/googlesitekit-authorize-application-css-********************.min.css	846 B
./dist/assets/css/googlesitekit-wp-dashboard-css-********************.min.css	8.2 kB
./dist/assets/js/31-********************.js	2.76 kB
./dist/assets/js/32-********************.js	2.25 kB
./dist/assets/js/33-********************.js	3.64 kB
./dist/assets/js/34-********************.js	935 B
./dist/assets/js/35-********************.js	892 B
./dist/assets/js/36-********************.js	3.12 kB
./dist/assets/js/analytics-advanced-tracking-********************.js	901 B
./dist/assets/js/googlesitekit-consent-mode-********************.js	25.6 kB
./dist/assets/js/googlesitekit-events-provider-contact-form-7-********************.js	646 B
./dist/assets/js/googlesitekit-events-provider-easy-digital-downloads-********************.js	624 B
./dist/assets/js/googlesitekit-events-provider-mailchimp-********************.js	630 B
./dist/assets/js/googlesitekit-events-provider-ninja-forms-********************.js	712 B
./dist/assets/js/googlesitekit-events-provider-optin-monster-********************.js	675 B
./dist/assets/js/googlesitekit-events-provider-popup-maker-********************.js	634 B
./dist/assets/js/googlesitekit-events-provider-woocommerce-********************.js	657 B
./dist/assets/js/googlesitekit-events-provider-wpforms-********************.js	633 B
./dist/assets/js/googlesitekit-i18n-********************.js	3.93 kB

_{compressed-size-action}