feat: add live draw feature and clean up docs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/mobile/android/app/src/main/res/values/strings.xml

@@ -2,4 +2,5 @@
   <string name="app_name">Sauci</string>
   <string name="expo_splash_screen_resize_mode" translatable="false">contain</string>
   <string name="expo_splash_screen_status_bar_translucent" translatable="false">false</string>
+  <string name="widget_livedraw_description" translatable="false">See your shared drawing with your partner.</string>
 </resources>

apps/mobile/android/app/src/main/res/xml/widgetprovider_livedraw.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:minWidth="250dp"
+    android:minHeight="110dp"
+    android:targetCellWidth="4"
+    android:targetCellHeight="2"
+
+
+
+    android:resizeMode="none"
+
+    android:description="@string/widget_livedraw_description"
+
+    android:initialLayout="@layout/rn_widget"
+    android:previewImage="@drawable/livedraw_preview"
+
+
+
+    android:updatePeriodMillis="1800000"
+    android:widgetCategory="home_screen">
+</appwidget-provider>