Tweak close vector button in default-config.

Tweak the close vector button so rounding issues don't cause one
pixel in the top right corner 'X' to be missing in some cases.
Unsure why this works, but in some cases it does.

This is the suggestion in #1065.

default-config/config

@@ -573,7 +573,7 @@ ButtonStyle All ToggledInactive Vector 5 47x47@3 57x53@3 53x53@3 \
 ButtonStyle All Inactive Vector 5 47x47@3 57x53@3 53x53@3 53x47@3 \
                 47x47@3 -- Flat
 AddButtonStyle 1 Active Vector 5 45x45@3 55x45@3 55x55@3 45x55@3 45x45@3
-AddButtonStyle 2 Active Vector 4 35x35@3 65x65@3 65x35@4 35x65@3
+AddButtonStyle 2 Active Vector 4 35x35@3 65x65@3 35x65@4 65x35@3
 AddButtonStyle 4 Active Vector 8 30x70@3 30x30@3 70x30@3 70x70@3 30x70@3 \
                  30x50@4 50x50@3 50x70@3
 AddButtonStyle 4 ToggledActiveUp Vector 8 30x70@3 30x30@3 70x30@3 70x70@3 \