chore: add mobile crash free dashboard template (#14119)

Author: marandaneto

contents/templates/mobile-crash-free/index.mdx

@@ -0,0 +1,39 @@
+---
+title: Mobile crash-free rates
+subtitle: 'Requires iOS, Android, Flutter, or React Native SDK'
+thumbnail: >-
+  https://res.cloudinary.com/dmukukwp6/image/upload/posthog.com/contents/templates/thumbnails/mobile.png
+showTitle: true
+filters:
+  type:
+    - dashboard
+  maintainer: official
+---
+
+<Section
+    divider={false}
+    cols={2}
+>
+    <div>
+        <h5>Monitor your crash-free rates</h5>
+        <p>PostHog automatically computes crash-free user and session rates, helping you instantly gauge how stable your app is and how often users encounter issues.</p>
+    </div>
+</Section>
+
+<section class="my-12 px-5">
+  <div class="max-w-screen-2xl mx-auto">
+    <h3 class="text-2xl lg:text-3xl m-0 text-center mb-6 sm:mb-12">What's on this dashboard?</h3>
+    <div class="flex justify-center">
+      <ul class="m-0 p-0 list-none inline-grid sm:grid-cols-2 justify-evenly relative after:absolute after:w-full after:left-0 after:top-1/2 after:-translateY-1/2 before:absolute before:h-full before:top-0 before:left-1/2 after:-translateX-1/2  sm:after:block after:hidden sm:before:block before:hidden">
+        <li class="relative md:max-w-md py-4 md:py-8 pl-4 pr-2 md:px-12">
+          <h5 class="text-xl font-extrabold m-0 pb-1 pr-4">crash-free users</h5>
+          <p class="m-0 text-[15px]">Understand how many unique users are crash-free.</p>
+        </li>
+        <li class="relative md:max-w-md py-4 md:py-8 pl-4 pr-2 md:px-12">
+          <h5 class="text-xl font-extrabold m-0 pb-1 pr-4">crash-free sessions</h5>
+          <p class="m-0 text-[15px]">Understand how many sessions are crash-free.</p>
+        </li>
+      </ul>
+    </div>
+  </div>
+</section>