Add app icon for SpaLib Gallery App

Bug: 235727273
Test: Manual with Gallery App
Change-Id: Ib9051cc9bad1e0f9e7956ba2c18ba52ee35fafca

packages/SettingsLib/Spa/.idea/codeStyles/Project.xml

@@ -4,6 +4,9 @@
       <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />
       <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
     </JetCodeStyleSettings>
+    <XML>
+      <option name="XML_KEEP_LINE_BREAKS" value="true" />
+    </XML>
     <codeStyleSettings language="XML">
       <option name="FORCE_REARRANGE_MODE" value="1" />
       <indentOptions>

packages/SettingsLib/Spa/gallery/AndroidManifest.xml

@@ -18,7 +18,8 @@
     package="com.android.settingslib.spa.gallery">
 
     <application
-        android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_label"
         android:supportsRtl="true">
         <activity
             android:name="com.android.settingslib.spa.gallery.MainActivity"

packages/SettingsLib/Spa/gallery/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2022 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@mipmap/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+</adaptive-icon>

packages/SettingsLib/Spa/gallery/res/values/strings.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!--
   Copyright (C) 2022 The Android Open Source Project
 
@@ -14,6 +15,8 @@
   limitations under the License.
   -->
 <resources>
+    <!-- Gallery App label. [DO NOT TRANSLATE] -->
+    <string name="app_label" translatable="false">Gallery</string>
     <!-- Gallery App name. [DO NOT TRANSLATE] -->
     <string name="app_name" translatable="false">SpaLib Gallery</string>
 </resources>