* feat: AnnouncementsList component (#540)

* Adds fake endpoint return for development

* Basic Announcements list

* Basic unstyled Announcements list

* Restoring proper announcements endpoint code

* Linting issues

Signed-off-by: Marcos Iglesias <miglesiasvalle@lyft.com>

* feat: Announcements container and saga, api and reducer modifications (#541)

* Basic container

* Adding status code to announcement response

* Updating Announcements reducer, sagas and api to support loading and error states

* Linting details

* Completing the global state fixture

* Basic tests for connection

Signed-off-by: Marcos Iglesias <miglesiasvalle@lyft.com>

* Basic card with loading shimmer (#546)

Signed-off-by: Marcos Iglesias <miglesiasvalle@lyft.com>

* feat: Card Styling for announcements (#550)

* Shimmering card styles

* Basic card typography styling

* Add links and link styles to cards

* Adjusting card copy per Knowl specs
...