fix: support trailing commas in JSONC config files

Replace custom strip_jsonc_comments function with json-strip-comments crate
which properly handles both comments and trailing commas.

Also reverts biome dependency versions to pre-pretty-printer state to fix
build failures caused by incompatible biome crate versions.

Fixes #669

Author: psteinroe

.gitignore

@@ -50,3 +50,4 @@ test-results/
 site/
 
 biome-main/
+.review/