Support bracket colorization (rainbow brackets) (#43172)

Deals with https://github.com/zed-industries/zed/issues/5259

Highlights brackets with different colors based on their depth.
Uses existing tree-sitter queries from brackets.scm to find brackets,
uses theme's accents to color them.


https://github.com/user-attachments/assets/cc5f3aba-22fa-446d-9af7-ba6e772029da

1. Adds `colorize_brackets` language setting that allows, per language
or globally for all languages, to configure whether Zed should color the
brackets for a particular language.

Disabled for all languages by default.

2. Any given language can opt-out a certain bracket pair by amending the
brackets.scm like `("\"" @open "\"" @close) ` -> `(("\"" @open "\""
@close) (#set! rainbow.exclude))`

3. Brackets are using colors from theme accents, which can be overridden
as

```jsonc
"theme_overrides": {
  "One Dark": {
    "accents": ["#ff69b4", "#7fff00", "#ff1493", "#00ffff", "#ff8c00", "#9400d3"]
  }
},
```

Release Notes:

- Added bracket colorization (rainbow brackets) support. Use
`colorize_brackets` language setting to enable.

---------

Co-authored-by: MrSubidubi <dev@bahn.sh>
Co-authored-by: Lukas Wirth <lukas@zed.dev>
Co-authored-by: MrSubidubi <finn@zed.dev>
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>

crates/editor/src/display_map/custom_highlights.rs

@@ -40,7 +40,6 @@ impl<'a> CustomHighlightsChunks<'a> {
             buffer_chunks: multibuffer_snapshot.chunks(range.clone(), language_aware),
             buffer_chunk: None,
             offset: range.start,
-
             text_highlights,
             highlight_endpoints: create_highlight_endpoints(
                 &range,
@@ -75,16 +74,9 @@ fn create_highlight_endpoints(
             let style = text_highlights.0;
             let ranges = &text_highlights.1;
 
-            let start_ix = match ranges.binary_search_by(|probe| {
-                let cmp = probe.end.cmp(&start, buffer);
-                if cmp.is_gt() {
-                    cmp::Ordering::Greater
-                } else {
-                    cmp::Ordering::Less
-                }
-            }) {
-                Ok(i) | Err(i) => i,
-            };
+            let start_ix = ranges
+                .binary_search_by(|probe| probe.end.cmp(&start, buffer).then(cmp::Ordering::Less))
+                .unwrap_or_else(|i| i);
 
             for range in &ranges[start_ix..] {
                 if range.start.cmp(&end, buffer).is_ge() {