feat: Dynamically Link back to the Goose homepage from the extensions site (#953)

extensions-site/app/components/header.tsx

@@ -2,6 +2,7 @@ import { IconDownload } from "./icons/download";
 import { IconGoose } from "./icons/goose";
 import { ThemeToggle } from "./themeToggle";
 import { Button } from "./ui/button";
+import { SiteURLs } from '../constants';
 import { NavLink, useLocation } from "react-router";
 
 export const Header = () => {
@@ -9,11 +10,14 @@ export const Header = () => {
   const { hash, pathname, search } = location;
 
   const stableDownload = "https://github.com/block/goose/releases/download/stable/Goose.zip";
-
+  
+  // link back to the main site if the icon is clicked on the extensions homepage
+  // otherwise link back to the extensions homepage
+  const gooseIconLink = pathname === "/" ? SiteURLs.GOOSE_HOMEPAGE : "/";
   return (
     <div className="bg-bgApp container mx-auto border-borderSubtle py-16">
       <div className="h-full flex justify-between items-center">
-        <NavLink to="/" className="text-textProminent">
+        <NavLink to={gooseIconLink} className="text-textProminent">
           <IconGoose />
         </NavLink>
         <div className="w-auto items-center flex">

extensions-site/app/constants.ts

@@ -0,0 +1,3 @@
+export const SiteURLs = {
+    GOOSE_HOMEPAGE: "https://block.github.io/goose/",
+};