Removing splash screen plugin, upgrading to android 13 (jdk 17 now ne…

…eded). apache/cordova-android#1678

Added kotlin version etc.

Removing splash files, after they are not longer supported with android

config.xml

@@ -16,8 +16,9 @@
     <allow-navigation href="*" />
     <preference name="ScrollEnabled" value="false" />
     <preference name="android-minSdkVersion" value="24" />
-    <preference name="android-targetSdkVersion" value="33" />
-    <preference name="android-compileSdkVersion" value="33" />
+    <preference name="android-targetSdkVersion" value="34" />
+    <preference name="android-compileSdkVersion" value="34" />
+    <preference name="android-buildToolsVersion" value="34.0.0" />
     <preference name="SplashMaintainAspectRatio" value="true" />
     <preference name="FadeSplashScreenDuration" value="300" />
     <preference name="SplashShowOnlyFirstTime" value="false" />
@@ -30,6 +31,11 @@
     <preference name="AndroidExtraFilesystems" value="files,files-external,documents,cache,cache-external" />
     <preference name="iosExtraFilesystems" value="library,library-nosync,documents,documents-nosync,cache,bundle,root" />
     <platform name="android">
+        <preference name="GradleVersion" value="8.7" />
+        <preference name="AndroidGradlePluginVersion" value="8.3.0" />
+        <preference name="GradlePluginKotlinVersion" value="1.9.24" />
+        <preference name="GradlePluginKotlinEnabled" value="true" />
+        <preference name="GradlePluginKotlinCodeStyle" value="official" />
         <edit-file mode="merge" parent="/resources" target="app/src/main/res/values/themes.xml">
             <style name="Theme.App.SplashScreen" parent="Theme.SplashScreen">
                 <item name="windowSplashScreenBackground">#FFFFFF</item>