Fix YAML heredoc EOF indentation in Chrome Web Store deployment

- Properly indent EOF terminator to match heredoc content
- Resolve YAML validation error on line 221
- Ensure correct bash heredoc syntax
- Enable successful CI/CD pipeline execution

Author: codingnooob

.github/workflows/ci-cd.yml

@@ -218,7 +218,7 @@ jobs:
             # This safely handles multi-line PEM content without bash interpretation
             cat > chrome-extension.pem << 'EOF'
             ${{ secrets.CHROME_CRX_PRIVATE_KEY }}
-EOF
+            EOF
             echo "🔐 Using verified CRX private key from GitHub Secrets"
             chmod 600 chrome-extension.pem