feat: highlight rust string interpolation macros that use format_args!

[nik-rev]

This is a revival of #12768

This adds syntax highlighting to a hard-coded set of Rust macros that accept a string literal which will be passed to format_args!.

All std macros are included as well as several crates

One thing that I'm not sure how to fix, is that the rust language syntax highlighter injections seems to break for other arguments when I inject rust-format-args into the 1st argument

I don't know if it's something we can do about the query or tree-house

  (macro_invocation
    macro:
      [
        (scoped_identifier
          name: (_) @_macro_name)
        (identifier) @_macro_name
      ]
    (token_tree
      . (string_literal
        (string_content) @injection.content
      )
    )
  )

Before

After

[the-mikedavis]

I tried some tweaks to the queries but it seems like we can't currently select the other items in the token tree to inject them as Rust. It'd be nice to fix but I don't want it to block this PR

[Rudxain]

I assume this is a known issue, but I'll report it anyways. At commit 1023e8f, this buffer doesn't highlight properly:

fn main() {
	println!(
		"{}",
		std::fs::read(std::env::args().nth(1).unwrap())
			.unwrap()
			.into_iter()
			.fold(0, |count, c| count + usize::from(c == b'\n'))
	);
}

The parent commit (223ceec) does color it as expected

[the-mikedavis]

Yeah, originally I was thinking that this wasn't a big deal but after using this change for a while it is quite noticeable, at least because I like printf debugging :P

I believe it's an issue in tree-house where we need to refine the precedence so that we can have overlapping injections like overlapping highlights, but I haven't looked into it much yet

If it isn't practical to fix before the next release (probably early July) then I would consider reverting this temporarily before the release and reapplying after so that we preserve the behavior of the last release