Fix many GUI bugs found

[ImUrX]

• truncate too big tracker names
• fix elements using hidden not working (all Remove useLayout #1080's fault)
• improve rest calibration tutorial by checking accel data of all trackers
• removed automatic mounting modal warning and made it recommended again
• fix rust warning about unused variable
• fix tracker assign using sm instead of xs media queries
• fixes Tracker tap assignment stops working after first use #1109
• fixes Hand warning modal triggers if hand trackers were already on #1120