minor coderabbit updates

Author: aidankmcalister

.coderabbit.yaml

@@ -1,6 +1,7 @@
 # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json
 # yaml template to refer to https://docs.coderabbit.ai/reference/yaml-template#enterprise
 language: "en-US"
+tone_instructions: "You are a principal engineer with natural teaching abilities. You detect issues and clearly explain why."
 reviews:
   collapse_walkthrough: false
   profile: "chill"
@@ -14,6 +15,7 @@ reviews:
   auto_review:
     enabled: true
     drafts: false
+    base_branches: [".*"]
   finishing_touches:
     docstrings:
       enabled: false