misc: export images at 400% scale instead of 100%

data/en.mse-locale/locale

@@ -230,7 +230,7 @@ help:
 		Note: You must restart MSE for the changes to take effect.
 	zoom export:
 		(When off, the cards are exported
-		 and copied at 100% size and normal rotation)
+		 and copied at 400% size and normal rotation)
 	
 	# apprentice export
 	set code:			A set code is a two character code that is used by Apprentice to refer to a set.

src/data/format/image.cpp

@@ -32,7 +32,7 @@ public:
   Rotation getRotation() const override;
 private:
   bool use_zoom_settings;
-  double zoom  = 1.0;
+  double zoom  = 4.0;
   double angle = 0.0;
 };
 Rotation UnzoomedDataViewer::getRotation() const {