[luci] Bootstrap-theme: clicking to open submenus instead of hovering

[Alive4Ever]

Hello,

I've been using openwrt with Luci Bootstrap theme. I love the 
theme because of its simplicity and good looks.

Sadly, I feel this theme is not optimized for touchscreen 
devices. Hovering over menu to expand submenus is a pain for 
touchscreen devices, especially with Firefox Mobile.

I suggest removing hover action to expand submenus and replace 
it with click to expand. This is more convenient for mobile 
devices.

Thanks.