Design reference:
https://www.figma.com/file/YIGBkXUcnRGz2ZKNmLaJQf/Coder-Product-V2?type=design&node-id=2867-7119&mode=design&t=DQ5vtZWsJaLfLNSo-0

Tasks:

• Refactor topbar
• Add history to sidebar
• Add resources to sidebar
• Refactor resource data
• Refactor agent card
• Refactor notifications - warnings, errors, info, etc