feat: add mobile web app capability meta tag to index.html (#6)

Co-authored-by: You <anonymous@example.com>

Author: AlliotTech

index.html

@@ -10,6 +10,7 @@
     <meta name="google" content="notranslate" />
     <link href="/static/manifest.json" rel="manifest" />
     <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-title" content="OpenAList" />
     <link
       rel="apple-touch-icon"