CHEWY: Some game hotkeys do not work

[antoniou79]

Tested on Windows 10 x64, with ScummVM 2026.1.0, with English version of the game.

Some of the game hotkeys, as specified in the manual, do not work in ScummVM.

Specifically those that don't work are:

• L key should toggle music looping (with a short overlay message stating the current mode after the toggle), so that the player can choose to disable/enable the looping music in rooms.
• ^{key (in DoxBOX this actually seems to be the ~ (or `) key on the top left of the keyboard layout, before the number keys) toggles the "stand-by" overlay window (the one that shows the currently/last selected item from the inventory), so that it gets hidden or becomes visible.}

The game's manual is on the CD, under subfolder "MANUAL", in PDF format.