fix blurry splash screen in android (#3996)

Author: arjunaj5

android/app/src/main/assets/capacitor.plugins.json

@@ -61,6 +61,6 @@
 	},
 	{
 		"pkg": "capacitor-secure-storage-plugin",
-		"classpath": "com.whitestein.securestorage.SecureStoragePlugin"
+		"classpath": "com.whitestein.securestorage.SecureStoragePluginPlugin"
 	}
 ]

android/app/src/main/ic_launcher_new_splash-playstore.png

@@ -1,5 +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_new_splash_background"/>
-    <foreground android:drawable="@mipmap/ic_launcher_new_splash_foreground"/>
+    <foreground android:drawable="@drawable/ic_launcher_new_splash_foreground"/>
 </adaptive-icon>

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

@@ -1,5 +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_new_splash_background"/>
-    <foreground android:drawable="@mipmap/ic_launcher_new_splash_foreground"/>
+    <foreground android:drawable="@drawable/ic_launcher_new_splash_foreground"/>
 </adaptive-icon>