feat: update icons for the new logo

fixed #918

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="256"
+    android:viewportHeight="256">
+  <group android:scaleX="0.23"
+      android:scaleY="0.23"
+      android:translateX="98.56"
+      android:translateY="98.56">
+    <path
+        android:pathData="M253.85,4.9C254.32,3.82 254.22,2.57 253.58,1.58C252.93,0.6 251.83,0 250.64,0C243.29,0 230.47,0 225.95,0C224.96,0 224.06,0.59 223.66,1.5C216.03,18.88 144.1,182.7 130.29,214.16C129.89,215.07 128.99,215.66 128,215.66C127.01,215.66 126.11,215.07 125.71,214.16C111.9,182.7 39.97,18.88 32.34,1.5C31.94,0.59 31.04,0 30.05,0C25.53,0 12.71,0 5.36,0C4.17,0 3.07,0.6 2.42,1.58C1.78,2.57 1.68,3.82 2.15,4.9C16.78,38.3 101.47,231.61 111.24,253.9C111.8,255.18 113.06,256 114.45,256C120.29,256 135.71,256 141.55,256C142.94,256 144.2,255.18 144.76,253.9C154.52,231.61 239.22,38.3 253.85,4.9Z"
+        android:fillColor="#ffffff"/>
+    <path
+        android:pathData="M130.59,131.75C130.06,132.68 129.07,133.25 128,133.25C126.93,133.25 125.94,132.68 125.4,131.75C113.45,111.06 63.88,25.19 51.93,4.5C51.4,3.57 51.4,2.43 51.93,1.5C52.47,0.57 53.46,-0 54.53,-0L201.47,-0C202.54,-0 203.53,0.57 204.06,1.5C204.6,2.43 204.6,3.57 204.06,4.5C192.12,25.19 142.54,111.06 130.59,131.75Z">
+      <aapt:attr name="android:fillColor">
+        <gradient 
+            android:startX="128"
+            android:startY="-0"
+            android:endX="128"
+            android:endY="254.6"
+            android:type="linear">
+          <item android:offset="0" android:color="#FFF04E98"/>
+          <item android:offset="0.5" android:color="#FF5F65D4"/>
+          <item android:offset="1" android:color="#FF4E98F0"/>
+        </gradient>
+      </aapt:attr>
+    </path>
+  </group>
+</vector>

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

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

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#1B1B1B</color>
+</resources>