Create the Navbar Component

[limetheman]

• Reference this mockup https://www.figma.com/file/AdXbLXen0XZNTqoozEVwgY/Gopher-Tunnels?type=design&node-id=0%3A1&mode=design&t=ibvAoyX45bOUmqIC-1
• [ ] Create a Navbar component folder within the components folder
• [ ] Create index.tsx and styles.ts within your component folder
• [ ] Render the component inside of the home screen for now
• [ ] Implement the logic for Navbar using useEffect/useState within index.tsx
• [ ] Implement the styles within styles.ts
• [ ] Submit the changes made as a Pull Request and assign Victor and Liem to review