Picture resizing and sizes and other things
+ Made the width of pictures requested from Sigfood depend on the screen width
+ Added a setting allowing to switch off or lower the resolution of pictures
  on the meal plan to reduce loading time
+ Cropped pictures on the meal plan to 16:9 and on the meal details to 1:1 to
  avoid pictures taken in portrait orientation stretching the layout
+ Meal names on meal plan are now left-aligned