Update the Xforms and core version

Author: AzureAD\SrideviSivakumar

GettingStarted/GettingStarted.Android/GettingStarted.Android.csproj

@@ -16,7 +16,7 @@
     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <AndroidUseLatestPlatformSdk>false</AndroidUseLatestPlatformSdk>
-    <TargetFrameworkVersion>v8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v9.0</TargetFrameworkVersion>
     <AndroidHttpClientHandlerType>Xamarin.Android.Net.AndroidClientHandler</AndroidHttpClientHandlerType>
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
@@ -50,14 +50,9 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Syncfusion.Xamarin.Core">
-      <Version>17.1.0.32-beta</Version>
+      <Version>*</Version>
     </PackageReference>
-    <PackageReference Include="Xamarin.Forms" Version="3.4.0.1008975" />
-    <PackageReference Include="Xamarin.Android.Support.Design" Version="27.0.2.1" />
-    <PackageReference Include="Xamarin.Android.Support.v7.AppCompat" Version="27.0.2.1" />
-    <PackageReference Include="Xamarin.Android.Support.v4" Version="27.0.2.1" />
-    <PackageReference Include="Xamarin.Android.Support.v7.CardView" Version="27.0.2.1" />
-    <PackageReference Include="Xamarin.Android.Support.v7.MediaRouter" Version="27.0.2.1" />
+    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1687" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="MainActivity.cs" />

GettingStarted/GettingStarted.Android/Properties/AndroidManifest.xml

@@ -1,5 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.companyname.GettingStarted">
-    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="27" />
-    <application android:label="GettingStarted.Android"></application>
-</manifest>
+	<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28" />
+	<application android:label="GettingStarted.Android"></application>
+</manifest>