feat(Website): Build Homepage

[a-trost]

Build out the homepage. File is available at src\pages\sponsor\[uid].astro. It's been stubbed out, just needs CSS and maybe some HTML fixes.

• [ ] All page sections
• [ ] Animations and effects
• [ ] Fully responsive
• [ ] Accessible WCAG AA
• [ ] Displays real donations

Dependent on:

• [ ] #4

[brittneypostma]

Note to update favicon.