fix splash background color and remove app icon in android manifest

Platforms/Android/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
-	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true"></application>
+	<application android:allowBackup="true" android:supportsRtl="true"></application>
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.INTERNET" />
 </manifest>

Views/Splash.xaml

@@ -2,7 +2,8 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="ShoopNCook.Pages.Splash"
-             Title="Splash">
+             Title="Splash"
+             BackgroundColor="{StaticResource BackgroundPrimary}">
     <Grid
         RowDefinitions="Auto,Auto,*,Auto">
         <Image Grid.Row="0"