Create client preference for if hotkey mode is enabled by default on login or not.

* Adds preference setting for wether hotkeys should default to enabled or disabled.
* Fixes bug for CTRL+NUMPAD8 using old verb name for toggling head.

code/modules/client/preference_setup/global/setting_datums.dm

@@ -104,6 +104,13 @@ var/list/_client_preferences_by_type
 	enabled_description = "Show"
 	disabled_description = "Hide"
 
+/datum/client_preference/hotkeys_default
+	description ="Hotkeys Default"
+	key = "HUD_HOTKEYS"
+	enabled_description = "Enabled"
+	disabled_description = "Disabled"
+	enabled_by_default = FALSE // Backwards compatibility
+
 /datum/client_preference/show_typing_indicator
 	description ="Typing indicator"
 	key = "SHOW_TYPING"

code/modules/mob/living/silicon/robot/login.dm

@@ -5,7 +5,8 @@
 
 	show_laws(0)
 
-	winset(src, null, "mainwindow.macro=borgmacro hotkey_toggle.is-checked=false input.focus=true input.background-color=#D3B5B5")
+	// Override the DreamSeeker macro with the borg version!
+	client.set_hotkeys_macro("borgmacro", "borghotkeymode")
 
 	// Forces synths to select an icon relevant to their module
 	if(!icon_selected)

code/modules/mob/login.dm

@@ -56,4 +56,4 @@
 	recalculate_vis()
 
 	//set macro to normal incase it was overriden (like cyborg currently does)
-	winset(src, null, "mainwindow.macro=macro hotkey_toggle.is-checked=false input.focus=true input.background-color=#D3B5B5")
+	client.set_hotkeys_macro("macro", "hotkeymode")