FIX: empty state

[GabrielTozatti]

Description

Update the empty state to the new design, ensuring visual alignment with the updated layout and an improved user experience.

Summary

• In the empty state, colors were updated to match the new Figma layout, a more appropriate icon was added, and spacing adjustments were made.
• In notifications, only an icon adjustment was made.

Screenshots

Empty State:

Notifications:

• Video example : Link

Checklist

• I reviewed my PR code before submitting
• I ensured that the implementation is working correctly and did not impact other parts of the app
• I implemented error handling for all actions/requests and verified how they will be displayed in the UI (or there was no error handling needed).
• I mentioned the PR link in the task

[guimroque]

🚀 Production Promotion Checklist

This PR is being merged to main. Please verify the items below:

🔒 Security

• No secrets/credentials exposed in code
• No staging/development URLs hardcoded
• No debug flags enabled

✅ Quality

• Build passed on staging
• Tests passed on staging
• Code was reviewed on staging

🔄 Integrity

⚠️ Branch main has 4 commit(s) not in source. Consider syncing before merge.

⚠️ Issues Found

🔴 Critical (blocks merge)

• Localhost URL: localhost:5173 em playwright.config.ts:23

🟡 Warnings (manual review)

• Test domain: .test em .github/workflows/test-e2e.yml:23
• Test domain: .test em .github/workflows/test-e2e.yml:24
• Test domain: .test em package.json:16
• Unresolved TODO/FIXME: TODO: em src/components/dialog/link.tsx:8

[guimroque]

LGTM! ✅

All previous issues have been resolved. Code approved.