Quit an application with apple script won't work

Discussion & Questions
1

Hi guys!
Simple question, I have a Widget that runs this Apple Script and Shows the return value:

tell application "System Preferences"
    reveal anchor "Text" of pane id "com.apple.preference.keyboard"
    delay 0.5
   	    tell application "System Events"
    	tell pop up button 3 of tab group 1 of window 1 of application process "System Preferences"
    		if value is "Automatic by language" then
    			return "🌐"
    		else if (value) is "Français" then
    			return "🇫🇷"
    		else if (value) is "Deutsch" then
    			return "🇩🇪"
    		else if (value) is "Italiano" then
    			return "🇮🇹"
    		else if (value) is "U.S. English" then
    			return "🇺🇸"
    		else
    			return "❔"
    		end if
    	end tell
    	quit
	end tell
	quit
end tell

But System Preferences remains open, not minding the "quit" at the end. Did I miss something?
Thanks!
(Sorry if this is super basic, I barely touched Apple Script for now and am not sure if I messed up somewhere of if BTT keeps the System Prefs alive to show the return value.)