chore(deps): update dependency @edx/paragon to v19.18.0

Author: renovate-bot

package-lock.json

@@ -36,7 +36,7 @@
     "@edx/brand": "npm:@edx/[email protected]",
     "@edx/frontend-build": "9.1.4",
     "@edx/frontend-platform": "^1.15.1",
-    "@edx/paragon": "19.15.0",
+    "@edx/paragon": "19.18.0",
     "codecov": "3.8.3",
     "enzyme": "3.11.0",
     "enzyme-adapter-react-16": "1.15.6",