Trim blank HTML lines

[Poldraunic]

Hi!

What would be the best way to trim blank HTML lines? I am currently doing it like that:

const let blankLine = '...'
editor.getHTML()
    .replace(new RegExp(`^(${blankLine})+`), '')
    .replace(new RegExp(`(${blankLine})+$`), ''))

It works, but relies on maintaining blankLine variable in check with default style -- it is not a huge problem, but is easy to miss.

Is it possible to introduce some helpers so that I can get the line back out from Squire itself? If not maybe extending getHTML() function to perform trimming could also work.