feat: course about page markup and styles improvements #28484

Job	Run time
lms-1(py=3.11,dj=pinned,mongo=7.0)	10m 36s
lms-2(py=3.11,dj=pinned,mongo=7.0)	12m 36s
lms-3(py=3.11,dj=pinned,mongo=7.0)	14m 43s
lms-4(py=3.11,dj=pinned,mongo=7.0)	20m 41s
lms-5(py=3.11,dj=pinned,mongo=7.0)	12m 47s
lms-6(py=3.11,dj=pinned,mongo=7.0)	15m 45s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 40s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	15m 31s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 8s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	7m 13s
collect-and-verify	4m 32s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 37s
cms-2(py=3.11,dj=pinned,mongo=7.0)	13m 16s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 34s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	5m 27s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 40s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 44s
Unit tests successful	3s
compile-warnings-report	10s
coverage (3.11)	1m 42s
merge-artifacts	7s
	3h 6m 32s

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