Create maintained and add descriptions

Create the maintained space for BB maintained packages.

Add descriptions to the spaces represented by the tracks.

added to epic &419 (closed)

changed the description

added kinddocs priority8 labels

set weight to 1

marked this issue as blocked by #2415 (closed)

marked this issue as blocked by #2416 (closed)

marked this issue as blocking #2420 (closed)

added statusreview label

closed

removed statusreview label

assigned to @andrewshoell

added statusreview label

removed statusreview label