adds forge support, fixes some critical errors

routes/setup/forge.tsx

@@ -0,0 +1,14 @@
+import { Content } from "../../components/Content.tsx";
+import { ForgeVersions } from "../../islands/forgeVersions.tsx";
+
+export default function ForgeSetup() {
+  return (
+    <div class="container p-8">
+      <Content>
+        <h2 class="font-pixel text-2xl">Forge Setup</h2>
+        <p>Select the game version you wish to create a server for.</p>
+        <ForgeVersions />
+      </Content>
+    </div>
+  );
+}