feat: community workshop for custom widgets and CSS (#5984)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

apps/docs/src/pages/workshop/index.tsx

@@ -0,0 +1,22 @@
+import React from "react";
+import BrowserOnly from "@docusaurus/BrowserOnly";
+import useDocusaurusContext from "@docusaurus/useDocusaurusContext";
+import Layout from "@theme/Layout";
+
+export default function WorkshopPage() {
+  const { siteConfig } = useDocusaurusContext();
+  const configuredWorkshopUrl = (siteConfig.customFields?.workshopUrl as string | undefined) ?? "";
+
+  return (
+    <Layout title="Workshop" description="Community custom CSS and custom widgets for Homarr">
+      <main className="marketplace bg-background text-foreground min-h-[80vh]">
+        <BrowserOnly fallback={<div style={{ minHeight: "50vh" }} />}>
+          {() => {
+            const { WorkshopApp } = require("@site/src/components/workshop/WorkshopApp");
+            return <WorkshopApp workshopUrl={configuredWorkshopUrl || window.location.origin} />;
+          }}
+        </BrowserOnly>
+      </main>
+    </Layout>
+  );
+}