feat(client): add convar inventory:disableweapons

As the weapon wheel export is too complex for the minds of
"standalone vmenu nd_core" rp servers - here's the solution.

Includes some other tweaks like disabling hotkeys without
needing to struggle with setting a statebag.

Resolves #1643.

client.lua

@@ -794,7 +794,7 @@ local function registerCommands()
 		description = locale('reload_weapon'),
 		defaultKey = 'r',
 		onPressed = function(self)
-			if not currentWeapon or not canUseItem(true) then return end
+			if not currentWeapon or EnableWeaponWheel or not canUseItem(true) then return end
 
 			if currentWeapon.ammo then
 				if currentWeapon.metadata.durability > 0 then
@@ -826,7 +826,7 @@ local function registerCommands()
 			description = locale('use_hotbar', i),
 			defaultKey = tostring(i),
 			onPressed = function()
-				if invOpen or IsNuiFocused() or not invHotkeys then return end
+				if invOpen or EnableWeaponWheel or not invHotkeys or IsNuiFocused() then return end
 				useSlot(i)
 			end
 		})

init.lua

@@ -88,6 +88,7 @@ else
         weaponmismatch = GetConvarInt('inventory:weaponmismatch', 1) == 1,
         ignoreweapons = json.decode(GetConvar('inventory:ignoreweapons', '[]')),
         suppresspickups = GetConvarInt('inventory:suppresspickups', 1) == 1,
+        disableweapons = GetConvarInt('inventory:disableweapons', 0) == 1,
     }
 
     local ignoreweapons = table.create(0, (client.ignoreweapons and #client.ignoreweapons or 0) + 3)

modules/utils/client.lua

@@ -101,9 +101,10 @@ end
 
 local rewardTypes = 1 << 0 | 1 << 1 | 1 << 2 | 1 << 3 | 1 << 7 | 1 << 10
 
--- Enables the weapon wheel, but disables the use of inventory items
+-- Enables the weapon wheel, but disables the use of inventory weapons.
 -- Mostly used for weaponised vehicles, though could be called for "minigames"
 function Utils.WeaponWheel(state)
+    if client.disableweapons then state = true end
 	if state == nil then state = EnableWeaponWheel end
 
 	EnableWeaponWheel = state