fix: unhide discussion tab when enabling it (#677) #31519

Job	Run time
collect-and-verify	4m 16s
lms-1(py=3.11,dj=pinned,mongo=7.0)	11m 21s
lms-2(py=3.11,dj=pinned,mongo=7.0)	11m 59s
lms-3(py=3.11,dj=pinned,mongo=7.0)	15m 32s
lms-4(py=3.11,dj=pinned,mongo=7.0)	20m 6s
lms-5(py=3.11,dj=pinned,mongo=7.0)	12m 22s
lms-6(py=3.11,dj=pinned,mongo=7.0)	15m 48s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 21s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	15m 24s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 7s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 50s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 51s
cms-2(py=3.11,dj=pinned,mongo=7.0)	13m 12s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 38s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 19s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 15s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 46s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 44s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 43s
Unit tests successful	4s
compile-warnings-report	9s
coverage (3.11)	1m 51s
merge-artifacts	9s
	3h 24m 47s

Provide feedback