[android] Finalize migration to updated standard

Signed-off-by: Caio Oliveira <caiooliveirafarias0@gmail.com>

src/android/app/src/main/AndroidManifest.xml

@@ -33,7 +33,8 @@ SPDX-License-Identifier: GPL-3.0-or-later
     <application
         android:name="org.yuzu.yuzu_emu.YuzuApplication"
         android:label="@string/app_name_suffixed"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:allowBackup="true"
         android:hasFragileUserData="false"
         android:supportsRtl="true"

src/android/app/src/main/res/drawable-v26/ic_launcher.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_icon_bg" />
-    <foreground android:drawable="@drawable/ic_yuzu_icon" />
-    <monochrome android:drawable="@drawable/ic_yuzu_icon" />
-</adaptive-icon>

src/android/app/src/main/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="@color/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

src/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.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="@color/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

src/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">#000000</color>
+</resources>