Revert the external link confirmation popup for front components (#23567)

Reverts #23270 and #23404.

Links in front components navigate natively again, with no confirmation
popup and no per-app trusted-origins state in localStorage.

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packages/twenty-server/src/engine/metadata-modules/front-component/constants/seed-project/hello-world/index.tsx

@@ -107,17 +107,6 @@ const HelloWorld = () => {
           Render count: {renderCount}
         </span>
       </div>
-
-      <a
-        href="https://github.com/twentyhq/twenty"
-        style={{
-          color: '#0284c7',
-          fontSize: 14,
-          fontWeight: 600,
-        }}
-      >
-        Twenty on GitHub
-      </a>
     </div>
   );
 };