Implement empty topics listing page

[dlabaj]

Implement listing page / view when no topics are available:

[lboehling]

Hi @suyash-naithani! Jenn and I met today to make sure our empty states were consistent. We've decided to change to the plus-circle icon instead of the rocket icon, update the copy, remove the toolbar/pagination, and place the empty state on the page background instead of within a card.

Here is the marvel file: https://marvelapp.com/prototype/27944aa6/screen/75598378
I am also attaching a screenshot for easy viewing.

Let me know if you have any questions!

FYI @dlabaj

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days