debugger: Parse and highlight text with ANSI escape sequences (#32915)

Relanding #32817 with an improved approach, bugs fixed, and a test.

Release Notes:

- N/A

crates/search/src/project_search.rs

@@ -1377,7 +1377,7 @@ impl ProjectSearchView {
                 }
                 editor.highlight_background::<Self>(
                     &match_ranges,
-                    |theme| theme.search_match_background,
+                    |theme| theme.colors().search_match_background,
                     cx,
                 );
             });