Create Homepage layout

[clee231]

We need to start populating the site with some useful structure so that people can start using the site. A basic layout should be created for most content to be displayed.

Acceptance Criteria

• Create a two-pane website layout.

________________________
|                       |
|       Banner          |
|_______________________|
|        |              |
|        |     Vid      |
|  Side  |   Content    |
|   Bar  |              |
|_______________________|

• This should use a nested app-router to handle route/navigation changes.
• Ensure on navigation to the main / page routes to this layout.
• Mock content on the site using data retrieved from a service component.