chore(agentflow): update ESLint configuration to include root and markdown plugin (#5881)

* chore(agentflow): update ESLint configuration to include root and markdown plugin

* Update packages/agentflow/.eslintrc.js

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: jocelynlin-wd

packages/agentflow/.eslintrc.js

@@ -7,8 +7,10 @@ const crossFeatureRules = features.map((feature) => ({
 }))
 
 module.exports = {
+    root: true,
     extends: [
         'eslint:recommended',
+        'plugin:markdown/recommended',
         'plugin:react/recommended',
         'plugin:react/jsx-runtime',
         'plugin:react-hooks/recommended',