Multiple lines support

[kenjitayama]

Using <br> in toast.text got escaped, and \n did not show as line break.
I'd like to add new lines to my toast, if I need to show more messages before it dismisses.

[syeshchenko]

Yeah, that would be great! Voting for this!

[rayabhagis]

+1

[ghost]

Don't know if it will be usefull, but inside the paper-toast element, you can use the content to make what you want