Code folding doesn't collapse trailing white space

[bryanbuchanan]

(Placing this issue into Language Support, because I believe it's LSP related.)

When collapsing a block of code, I would expect all of that block's content to be collapsed, but Zed fails to collapse any trailing white space within the block, resulting in something like this:

function() {...

}

To reproduce:

1. Add an extra empty line or two to the end of a code block in any language, just before the closing tag.
2. Collapse that block. You'll see the empty lines remain.

This may be anecdotal, but I prefer the way Panic's Nova folds code blocks into a single line. I find it to do a better job of reducing visual noise, which is a purpose of the function in the first place:

function() {...}

...Rather than the way other editors tend to do it, showing the closing tag on its own line:

function() {...
}