Fix missing isAndroid var

website/src/.vitepress/theme/components/AddRepoButton.vue

@@ -1,6 +1,8 @@
 <script setup lang="ts">
 /// <reference types="@types/gtag.js" />
 
+import { onMounted, ref } from 'vue'
+
 function handleAnalytics() {
   window.gtag?.('event', 'Add', {
     event_category: 'Extension',
@@ -10,9 +12,16 @@ function handleAnalytics() {
 
 const url = new URL('tachiyomi://add-repo')
 url.searchParams.append('url', 'https://raw.githubusercontent.com/tachiyomiorg/extensions/repo/index.min.json')
+
+const isAndroid = ref(true)
+
+onMounted(() => {
+  isAndroid.value = !!navigator.userAgent.match(/android/i)
+})
 </script>
 
 <template>
+  <div>
     <div v-if="!isAndroid">
       <div class="action-buttons">
         <a
@@ -59,6 +68,7 @@ url.searchParams.append('url', 'https://raw.githubusercontent.com/tachiyomiorg/e
         </p>
       </div>
     </div>
+  </div>
 </template>
 
 <style lang="stylus">