[Backport release-3_40] Add help button to attribute form "other widgets" dialogs #36034

Job	Run time
build (22.04, 5, true, OFF, ON, ON, ON, ON, OFF, OFF, OFF, OFF, ON, false)	1h 45m 6s
build (39, 6, true, ON, OFF, ON, ON, OFF, OFF, ON, ON, ON, OFF, false)	31m 42s
clang-tidy (22.04, 5)	7m 28s
Run tests (5, ALL_BUT_PROVIDERS)	32m 26s
Run tests (5, POSTGRES)	6m 12s
Run tests (5, HANA)	11m 45s
Run tests (6, ALL_BUT_PROVIDERS)	38m 39s
Run tests (5, ORACLE, 22.04, binary-for-oracle)	6m 14s
	3h 59m 32s

Provide feedback