feat!: Replace sass with vanilla css in custom tag block #31311

Job	Run time
collect-and-verify	4m 12s
lms-1(py=3.11,dj=pinned,mongo=7.0)	9m 46s
lms-2(py=3.11,dj=pinned,mongo=7.0)	11m 39s
lms-3(py=3.11,dj=pinned,mongo=7.0)	15m 30s
lms-4(py=3.11,dj=pinned,mongo=7.0)	20m 0s
lms-5(py=3.11,dj=pinned,mongo=7.0)	11m 45s
lms-6(py=3.11,dj=pinned,mongo=7.0)	15m 52s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 12s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	14m 28s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 41s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 27s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 37s
cms-2(py=3.11,dj=pinned,mongo=7.0)	12m 45s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 17s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	5m 55s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	10m 12s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 46s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	9m 37s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 23s
Unit tests successful	2s
compile-warnings-report	9s
coverage (3.11)	1m 40s
merge-artifacts	6s
	3h 21m 1s

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