Add newlines to histogram queries

[philrz]

The issue in #2819 looks to be a revisit of what we first saw in #2452. Like that issue, it seems the fix is as simple as adding a newline after the user's base query so that way the additional Zed that app tacks on will still be active even if the user's program ended with a comment.

Regarding coding style, I wasn't sure if indents were necessary to make it obvious that these string literals spanned multiple lines. However, the prior fix in #2519 didn't have indents and what I've got in this branch seems to pass the linter.

I've put down @nwt as an additional reviewer just to double check that there's no negative side effects we can think of from these newlines being added.

Here's the video evidence on this branch of the fix working for the three variations laid out in #2819

Verify.mp4

Note that I've not tried to dig into the "TypeError: Cannot add property 2000, object is not extensible" error I showed in #2819 since that's a bit beyond my expertise. As I expected, my fixes here seem to prevent that error from being triggered anymore, but maybe there's still something to look closer at there.

Fixes #2819

[jameskerr]

Interesting!

[nwt]

I'd add a comment so no one unwittingly undoes this. And I think an escaped newline improves readability.

Suggested change

	const query = `${baseQuery}
	| ${timeField} == null | count()`
	// Newline after baseQuery in case it ends with a comment.
	const query = `${baseQuery}\n | ${timeField} == null | count()`