Pre-initialize global rayon threadpool (#41226)

We only use it a handful of times and the default amount of threads
(logical cpu core number) its spawns is overkill for this. This also
gives the threads names oppose to being labeled `<unknown>`

Release Notes:

- N/A *or* Added/Fixed/Improved ...

crates/editor/src/display_map.rs

@@ -751,6 +751,7 @@ pub struct DisplaySnapshot {
     diagnostics_max_severity: DiagnosticSeverity,
     pub(crate) fold_placeholder: FoldPlaceholder,
 }
+
 impl DisplaySnapshot {
     pub fn wrap_snapshot(&self) -> &WrapSnapshot {
         &self.block_snapshot.wrap_snapshot
@@ -1408,6 +1409,14 @@ impl DisplaySnapshot {
     }
 }
 
+impl std::ops::Deref for DisplaySnapshot {
+    type Target = BlockSnapshot;
+
+    fn deref(&self) -> &Self::Target {
+        &self.block_snapshot
+    }
+}
+
 #[derive(Copy, Clone, Default, Eq, Ord, PartialOrd, PartialEq)]
 pub struct DisplayPoint(BlockPoint);
 

crates/editor/src/editor.rs

@@ -7945,7 +7945,7 @@ impl Editor {
 
         let snapshot = self.snapshot(window, cx);
 
-        let multi_buffer_snapshot = snapshot.display_snapshot.buffer_snapshot();
+        let multi_buffer_snapshot = snapshot.buffer_snapshot();
         let Some(project) = self.project() else {
             return breakpoint_display_points;
         };
@@ -7975,7 +7975,7 @@ impl Editor {
                 let multi_buffer_anchor =
                     Anchor::in_buffer(excerpt_id, buffer_snapshot.remote_id(), breakpoint.position);
                 let position = multi_buffer_anchor
-                    .to_point(multi_buffer_snapshot)
+                    .to_point(&multi_buffer_snapshot)
                     .to_display_point(&snapshot);
 
                 breakpoint_display_points.insert(