Change advisories from popup to component

[WesSouza]

Opening a popup for advisories is not the best solution, especially when the site is installed on mobile:

• On iOS, closing is only possible with a hard to reach "Done" button
• Android doesn't know how to open a local popup and instead opens Chrome, and that prevents the code from writing the contents of the popup, which remains blank

A normal component with the advisory contents will be a better approach.