Current rendering suffers from two problems:
- it is not visible enough
- it can be mixed with a page loading spinner
To better display the information about ongoing analysis, we'll use the new notification banner pattern, in the blue "Info" color.
The same solution will be used for pending analysis, with the clock icon instead of the spinner.
Only Admins will see the message and link "More details available on the Background Task page", others will just see "Analysis in progress"