Fixed a bug causing unselected dates to have white background when date is switched

Author: styropyr0

styro_custom-date-picker/src/main/res/drawable/calendar_click.xml

@@ -4,7 +4,7 @@
     <item>
         <shape>
             <corners android:radius="8dp" />
-            <solid android:color="#FFFFFF" />
+            <solid android:color="#00FFFFFF" />
         </shape>
     </item>
 </ripple>

styro_custom-date-picker/src/main/res/drawable/calendar_highlight.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="#00FDEBE9" />
+    <solid android:color="#FDEBE9" />
     <corners android:radius="8dp" />
 </shape>