* Updates placeholder block color and icon.
* Moves `View Imported Content` & `Retry import` buttons in import details page inside alert at the top.
* Updates page title to include Import status in import details page.
The analysis step before importing a course considers the parent block while counting unsupported blocks but does not include children in the unsupported count.
We fetch usage_keys of all unsupported blocks and fetch the children blocks that contain these usage_keys in their breadcrumb field i.e., they are part of the unsupported blocks.
Shows course analysis information in review import details step in course import stepper page. Also handles alerts based on the import status, like, reimport or unsupported number of blocks.
