Enh sensitivity UI change #1454

Job	Run time
PyQt5 / ubuntu	2m 48s
pytest matrix / ubuntu / MNE main	7m 52s
PyQt6 / ubuntu	7m 43s
PySide2 / ubuntu	3m 18s
pytest matrix / ubuntu / MNE maint/1.7	7m 56s
PySide6 / ubuntu	8m 25s
pytest matrix / windows / MNE main	10m 14s
PySide6 / macos	7m 37s
pytest matrix / windows / MNE maint/1.7	10m 32s
PySide6 / windows	10m 18s
pytest matrix / macos / MNE main	4m 47s
pytest matrix / macos / MNE maint/1.7	5m 10s
pytest no opengl / ubuntu / MNE main	7m 12s
pytest no opengl / ubuntu / MNE maint/1.7	7m 27s
pytest old / ubuntu / MNE maint/1.5	7m 38s
pytest pip-pre / ubuntu / MNE main	8m 17s
	1h 57m 14s

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