docs(editor): Change to Summarize icon and Advanced section description (no-changelog) (#8008)

## Summary
- Change the description of the Advanced" section
- Replace the icon of Summarize



## Related tickets and issues
https://linear.app/n8n/issue/NODE-984/data-transformations-menu-minor-fixes



## Review / Merge checklist
- [ ] PR title and summary are descriptive. **Remember, the title
automatically goes into the changelog. Use `(no-changelog)` otherwise.**
([conventions](https://github.com/n8n-io/n8n/blob/master/.github/pull_request_title_conventions.md))
- [ ] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up
ticket created.
- [ ] Tests included.
> A bug is not considered fixed, unless a test is added to prevent it
from happening again.
   > A feature is not complete without tests.

packages/editor-ui/src/plugins/i18n/locales/en.json

@@ -868,7 +868,7 @@
 	"nodeCreator.subcategoryDescriptions.dataTransformation": "Manipulate data, run JavaScript code, etc.",
 	"nodeCreator.subcategoryDescriptions.files": "CSV, XLS, XML, text, images, etc.",
 	"nodeCreator.subcategoryDescriptions.flow": "IF, Switch, Wait, Compare and Merge data, etc.",
-	"nodeCreator.subcategoryDescriptions.helpers": "HTTP Requests (API Calls), date and time, scrape HTML, RSS, SSH, etc.",
+	"nodeCreator.subcategoryDescriptions.helpers": "Code, HTTP Requests (API Calls), Webhook, and other helpers",
 	"nodeCreator.subcategoryDescriptions.otherTriggerNodes": "Runs the flow on workflow errors, file changes, etc.",
 	"nodeCreator.subcategoryDescriptions.agents": "Autonomous entities that interact and make decisions.",
 	"nodeCreator.subcategoryDescriptions.chains": "Structured assemblies for specific tasks.",