Smaller / simpler appearance on mobile

It would be nice to have a few options for the bot icon on mobile devices:

• the ability for the user to completely hide the icon or minimize smaller (something on the edge). It is fairly distracting with the default icon on a mobile device given the very limited space.

• the option to never show on mobile (I can modify the script to not load on mobile, but would be handy to have a setting in Chatling or for the default script tag to have a boolean falg to do this)

• some ability to tweak settings differently for mobile - in particular I’m setting very small offsets to get out of the way on mobile, but the default spacing looks better on a computer.