Classic Editor: reduce height of slug editing field #35303

Job	Run time
Determine Matrix	4s
Single Site Memcached / Test before	14m 20s
Multisite Memcached / Test before	13m 53s
Multisite Memcached / Test current	14m 0s
Single Site Memcached / Test current	13m 53s
Single Site Default / Test current	14m 9s
Single Site Default / Test before	14m 12s
Multisite Default / Test before	14m 2s
Multisite Default / Test current	13m 30s
Compare / Single Site Memcached	15s
Compare / Multisite Memcached	15s
Compare / Multisite Default	17s
Compare / Single Site Default	11s
Slack Notifications	-1s
Failed workflow tasks	0s
	1h 53m 0s

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