When service fails and user visits slidewiki landing page, show error message without blocking the page. This should be merged only after merging swik-835 branch
When service fails and user visits slidewiki landing page, show error message without blocking the page.
This should be merged only after merging swik-835 branch

slidewiki/slidewiki-platform,slidewiki/slidewiki-platform,slidewiki/slidewiki-platform