Add support for a custom fly key in General settings

[redmax2500]

What I did :

• Added a new setting in the General settings to allow users to customize the fly key.
• The selected key is now used to activate/deactivate fly mode.
• Kept the existing default key behavior for users who do not configure a custom key.

Why ?

This gives developpers more flexibility by allowing them to choose the key they prefer for the fly command. This also addresses an existing issue requesting support for a customizable fly key (#2168)

Fly.toggle.key.mp4

[ImFirstPlace]

@redmax2500 Please also add a fallback "E" keybind in the DefaultSettings file otherwise the keybind will end up being nil if it isn't set.

[redmax2500]

@ImFirstPlace Thanks you ! This is added to the DefaultSettings.

[GalacticInspired]

I'm not seeing the option to change the keybind in the user panel.

[redmax2500]

I'm not seeing the option to change the keybind in the user panel.

This is normal : It's not for players but for the developper who configure Adonis. Isn't a personnal setting