Dashboard Studio 1.14.1: Android app, phone menu button, install fix

- Android app (android/, built with build.sh): signs in to Home Assistant once, opens Dashboard Studio full screen, renews the ingress session; downloadable from Install as an app
- Phone dashboards: a round menu button brings back the top bar with Edit, Kiosk and Install as an app
- Install as an app explains what works per device (Android app, https for browser install, iPhone limits)
- Fixed: browser install failed because the manifest was fetched without the Home Assistant sign-in

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

android/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_bg" />
+    <foreground android:drawable="@drawable/ic_fg" />
+</adaptive-icon>