Create "Dashboard" Page

[tahirxx]

Design: See this Figma File

**Code: **

Put page-content-specific components in src/components/ or in another components folder if they're potentially reusable on other pages.
Notes:

Let's prioritize using Radix UI components (check both their Theme and Primitives docs). It's ok to sprinkle in some tailwind in order to go above and beyond what we get out of the box with Radix, but don't feel like you need to be pixel-perfect when following the designs.