Add adaptive Android icon support and fix app label

android/app/src/main/AndroidManifest.xml

@@ -22,7 +22,7 @@
     <uses-feature android:name="android.hardware.usb.host" android:required="false"/>
 
     <application
-        android:label="meshcore_open"
+        android:label="MeshCore Open"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <service

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@color/ic_launcher_background"/>
+  <foreground>
+      <inset
+          android:drawable="@drawable/ic_launcher_foreground"
+          android:inset="16%" />
+  </foreground>
+</adaptive-icon>

android/app/src/main/res/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#9F9D95</color>
+</resources>

pubspec.yaml

@@ -117,6 +117,8 @@ flutter_launcher_icons:
   ios: true
   image_path: "mesh-icon.png"
   remove_alpha_ios: true
+  adaptive_icon_background: "#9F9D95"
+  adaptive_icon_foreground: "assets/icons/ic_foreground.png"
 
   # To add assets to your application, add an assets section, like this:
   # assets: