I dont know how to connect two code with each other

**Question:**i want to connect a code for customisation with a code for my website

Repl link: https://replit.com/@mansouriamr/Business-Survey?mobileWebview=1&mobileBridge=1&hideBottomBar=1&hideChatInput=1&supportsUpsellBridge=1&forceTheme=replitDark&fun=1#index.html

code snippet