Fix Unsafe deserialization of Parcel data Intent (#1691)

* Fix crash produced by unsafe deserialization of Parcel data passed on the intent

* Fix crash produced by unsafe deserialization of Parcel data passed on the intent on other activities and renamed intent extension method

src/Android/Utilities/IntentExtensions.cs

@@ -0,0 +1,22 @@
+using Android.Content;
+using Android.OS;
+
+namespace Bit.Droid.Utilities
+{
+    public static class IntentExtensions
+    {
+        public static void Validate(this Intent intent)
+        {
+            try
+            {
+                // Check if getting the bundle of the extras causes any exception when unparcelling
+                // Note: getting the bundle like this will cause to call unparcel() internally
+                var b = intent?.Extras?.GetBundle("trashstringwhichhasnousebuttocheckunparcel");
+            }
+            catch (BadParcelableException)
+            {
+                intent.ReplaceExtras((Bundle)null);
+            }
+        }
+    }
+}