Allow the about view to be closed via the ESC key

Signed-off-by: Marko Locher <marko@locher.at>
Some small CSS changes

Signed-off-by: Marko Locher <marko@locher.at>
Fix dragging of products to the y axis only

Signed-off-by: Marko Locher <marko@locher.at>
Restyle products again, use bootstrap input group addons

Signed-off-by: Marko Locher <marko@locher.at>