prevent html closing tag to be placed on newline

[ThomasKalverda]

https://trungk18.com/experience/prettier-prevent-html-closing-tag-new-line/

From this:

<span>
  I accept the
  <a class="underline" routerLink="/tnc"
    >Our terms and conditions</a
  >
</span>

To:

<span>
  I accept the
  <a class="underline" routerLink="/tnc">
    Our terms and conditions
  </a>
</span>

[jaap3]

There is actual white-space sensitivity in HTML. Your example could result in a change in rendering if we change this from the default (this is also explained in https://prettier.io/blog/2018/11/07/1.15.0.html#whitespace-sensitive-formatting).

The first snippet will result in Our terms and conditions while the second could result in  Our terms and conditions  (so the underline includes the whitespace inside the a tag) (depending on the styling etc.)

Without some proper testing to make sure this doesn't break anything, I wouldn't change this default.

[ThomasKalverda]

@jaap3, ah shit, you're totally right. I guess I'll have to find another way to get rid of the ugly closing tags..

I'll play around with it some more and convert this PR to a draft for now