Feature Request: Specify a width of the toast

[TreyWW]

I believe there should be a few inbuilt widths:

• full
• small (default)
• half
• number (this would be a custom amount the user specifies in px) eg 100 or "100px"
• percentage (this would be a custom amount the user specifies in %) eg "100%"

An example:

$.toast({
    heading: 'Testing',
    text: `This is a width test half`,
    width: 'half'
})

$.toast({
    heading: 'Testing',
    text: `This is a width test full`,
    width: 'full'
})```