Revert "Tailwind migration" #6636

Job	Run time
compile	1m 21s
check-translations	44s
test-extension (windows-latest)	3m 33s
test-webview (ubuntu-latest)	2m 46s
knip	51s
test-extension (ubuntu-latest)	2m 41s
test-webview (windows-latest)	4m 23s
check-openrouter-api-key	2s
integration-test	1m 46s
unit-test	4s
	18m 11s

Provide feedback