Move Power menu from Gesture to System Settings

- Add icon for Power menu
- Remove from Gesture Settings
- Add to System Settings

Bug: 168176408
Test: manual
Change-Id: Ie7d5530d7e4e32a6db5ce43717131018944bbe28

res/drawable/ic_power_settings.xml

@@ -0,0 +1,26 @@
+<!--
+    Copyright (C) 2021 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.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24"
+        android:viewportHeight="24"
+        android:tint="?android:attr/colorControlNormal">
+    <path
+        android:pathData="M11,2h2v10h-2zM18.37,5.64l-1.41,1.41c2.73,2.73 2.72,7.16 -0.01,9.89 -2.73,2.73 -7.17,2.73 -9.89,0.01 -2.73,-2.73 -2.74,-7.18 -0.01,-9.91l-1.41,-1.4c-3.51,3.51 -3.51,9.21 0.01,12.73 3.51,3.51 9.21,3.51 12.72,-0.01 3.51,-3.51 3.51,-9.2 0,-12.72z"
+        android:fillColor="@android:color/white"/>
+</vector>

res/xml/gestures.xml

@@ -93,10 +93,4 @@
         android:title="@string/gesture_prevent_ringing_screen_title"
         android:fragment="com.android.settings.gestures.PreventRingingGestureSettings"
         settings:controller="com.android.settings.gestures.PreventRingingParentPreferenceController" />
-
-    <Preference
-        android:key="gesture_power_menu_summary"
-        android:title="@string/power_menu_setting_name"
-        android:fragment="com.android.settings.gestures.PowerMenuSettings"
-        settings:controller="com.android.settings.gestures.PowerMenuPreferenceController" />
 </PreferenceScreen>

res/xml/system_dashboard_fragment.xml

@@ -43,6 +43,14 @@
         android:fragment="com.android.settings.datetime.DateTimeSettings"
         settings:controller="com.android.settings.datetime.DateTimePreferenceController"/>
 
+    <Preference
+        android:key="gesture_power_menu_summary"
+        android:title="@string/power_menu_setting_name"
+        android:icon="@drawable/ic_power_settings"
+        android:order="-220"
+        android:fragment="com.android.settings.gestures.PowerMenuSettings"
+        settings:controller="com.android.settings.gestures.PowerMenuPreferenceController" />
+
     <!-- System updates -->
     <Preference
         android:key="additional_system_update_settings"