Add back extension popup files

interface/src/pages/About.tsx

@@ -0,0 +1,20 @@
+const About: React.FC = () => {
+
+  return (
+    <div className="flex flex-col overflow-y-scroll divide-y divide-zinc-100/50">
+      <div>
+        <h2 className="text-lg font-bold">About</h2>
+        <p className="py-2">BetterSEQTA+ is a branch of BetterSEQTA which was originally developed by Nulkem. It was discontinued. So BetterSEQTA+ has come in to fill in that gap!</p>
+        <p className="py-2">We are currently working on fixing bugs and adding new features. If you want to request a feature or report a bug, you can do so on 
+          <a className="pl-1 text-blue-500 underline hover:text-blue-600" href="https://github.com/SethBurkart123/EvenBetterSEQTA" target="_blank">Github</a>.
+        </p>
+      </div>
+      <div>
+        <h2 className="pt-2 text-lg font-bold">Credits</h2>
+        <p className="py-2">Nulkem for the original extension, OG-RandomTechChannel, Crazypersonalph, and the current maintainer SethBurkart123</p>
+      </div>
+    </div>
+  );
+};
+
+export default About;