Disable high_level_summary

Author: oddbookworm

.coderabbit.yaml

@@ -5,7 +5,7 @@ enable_free_tier: true
 reviews:
   profile: chill
   request_changes_workflow: false
-  high_level_summary: true
+  high_level_summary: false
   high_level_summary_placeholder: '@coderabbitai summary'
   high_level_summary_in_walkthrough: true
   auto_title_placeholder: '@coderabbitai'