Key binds menu calls Clear key "Num Lock"

Relates to MC-121375, MC-189953 and MC-310595.

On a Mac, attempting to bind a control to the Clear button will instead display “Num Lock” in-game.

To reproduce:

• go into the Key Binds menu

• select your target action

• bind it to the Clear button

• observe

Expected results: it displays “Clear”.

Actual results: it displays “Num Lock”.