Dummy input has 50% max-width in every case

[triszt4n]

Is your feature request related to a problem? Please describe.
Right now we have to accept, the dummy input allows only 50% of the input text to be shown.
Yes, this should be good enough for range datetimepickers, but not for simple ones.

Describe the solution you'd like
in index.sass: .datetimepicker-dummy.datetimepicker-dummy-wrapper.datetimepicker-dummy-input should be 100%, and maybe &.is-datetimepicker-range could overwrite it to 50%.

Describe alternatives you've considered
in index.sass: .datetimepicker-dummy.datetimepicker-dummy-wrapper.datetimepicker-dummy-input should have a variable for max-width, so that we can customize.

Additional context

(The svg problem is another thing happening in Chromium based browsers. Firefox can show it.)

[michael-hack]

Fixed with 6.1.2