Add/fix critical css e2e on interstitial #71632

Job	Run time
detect changed files	9s
Copied files are in sync	7s
Changelogger use	29s
Project structure	1m 33s
Changelogger validity	25s
PHP lint (7.2)	52s
PHP Code Sniffer (non-excluded files only)	2m 5s
PHP Compatibility	1m 38s
PHP lint (7.4)	34s
PHP lint (8.0)	38s
PHP lint (8.1)	34s
ESLint (non-excluded files only)	3m 22s
PHP lint (8.2)	42s
PHP Code Sniffer (changes to excluded files only)	0s
PHP lint (8.3)	33s
PHP lint (8.4)	37s
Check linter exclude lists	2m 22s
ESLint (changes to excluded files only)	0s
Lock files are up to date	1m 51s
Lint GitHub Actions yaml files	0s
Monorepo package version refs	1m 7s
	19m 38s

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