docs: use mdx-components Accordion for headless/introduction

Author: maiieul

apps/website/src/routes/docs/headless/introduction/index.mdx

@@ -92,33 +92,39 @@ One of the benefits of Qwik is its ability to create performant applications wit
 ## FAQ
 
 <Accordion>
-    <AccordionItem>
-        <AccordionTrigger>
-            What kind of support or resources are available if I encounter issues with Qwik UI?
-        </AccordionTrigger>
-            <AccordionContent>
-                    If you stumble into any problems, [create an issue](https://github.com/qwikifiers/qwik-ui/issues) on the Qwik UI repository. 
-                    We also have a [discord community](https://discord.gg/PVWUUejrez) with a Qwik UI channel where you can raise any concerns, propose ideas, or chat all things Qwik UI 😊
-            </AccordionContent>
-    </AccordionItem>
-    <AccordionItem>
-        <AccordionTrigger>
-        How can I contribute to the project?
-        </AccordionTrigger>
+  <AccordionItem>
+    <AccordionTrigger>
+      What kind of support or resources are available if I encounter issues with Qwik UI?
+    </AccordionTrigger>
     <AccordionContent>
-            We provide a [contributing](/docs/headless/contributing) guide to help get familiar with the repository.
-            Additionally, we offer a quick start [setup guide](https://github.com/qwikifiers/qwik-ui/blob/main/CONTRIBUTING.md) and a section dedicated to advanced resources below the Components navigation.
+      If you stumble into any problems, [create an
+      issue](https://github.com/qwikifiers/qwik-ui/issues) on the Qwik UI repository. We
+      also have a [discord community](https://discord.gg/PVWUUejrez) with a Qwik UI
+      channel where you can raise any concerns, propose ideas, or chat all things Qwik UI
+      😊
     </AccordionContent>
-    </AccordionItem>
-    <AccordionItem>
-        <AccordionTrigger>
-        How can I migrate my existing application to use Qwik UI?
-        </AccordionTrigger>
+  </AccordionItem>
+  <AccordionItem>
+    <AccordionTrigger>How can I contribute to the project?</AccordionTrigger>
     <AccordionContent>
-            If you're using `Qwik-React`, `Qwik-Angular`, `@qwikdev/astro`, we suggest incrementally adding Qwik UI components to your application.
-            Qwik, built as a microfrontend, allows you to incrementally integrate Qwik UI components into your existing application. This approach reduces migration risk and complexity, letting you leverage Qwik UI's benefits at your own pace.
+      We provide a [contributing](/docs/headless/contributing) guide to help get familiar
+      with the repository. Additionally, we offer a quick start [setup
+      guide](https://github.com/qwikifiers/qwik-ui/blob/main/CONTRIBUTING.md) and a
+      section dedicated to advanced resources below the Components navigation.
     </AccordionContent>
-    </AccordionItem>
+  </AccordionItem>
+  <AccordionItem>
+    <AccordionTrigger>
+      How can I migrate my existing application to use Qwik UI?
+    </AccordionTrigger>
+    <AccordionContent>
+      If you're using `Qwik-React`, `Qwik-Angular`, `@qwikdev/astro`, we suggest
+      incrementally adding Qwik UI components to your application. Qwik, built as a
+      microfrontend, allows you to incrementally integrate Qwik UI components into your
+      existing application. This approach reduces migration risk and complexity, letting
+      you leverage Qwik UI's benefits at your own pace.
+    </AccordionContent>
+  </AccordionItem>
 </Accordion>
 
 ## Credits