Update comment bubbles' color in hover state #33197

Job	Run time
Determine Matrix	5s
Multisite Default / Test current	14m 59s
Single Site Default / Test before	15m 6s
Multisite Memcached / Test before	15m 6s
Multisite Memcached / Test current	14m 15s
Single Site Memcached / Test current	14m 50s
Single Site Default / Test current	15m 11s
Multisite Default / Test before	15m 1s
Single Site Memcached / Test before	14m 42s
Compare / Multisite Memcached	28s
Compare / Single Site Default	24s
Compare / Multisite Default	29s
Compare / Single Site Memcached	19s
Slack Notifications	0s
Failed workflow tasks	0s
	2h 0m 55s

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