Resolve "Show status icon for every lesson"

Closes #63 (closed)

Blocked by !48 (merged)

changed milestone to %1.0a1

added workflow::blocked label

assigned to @nik

added 22 commits

• 3926f0ea...a8b1b29c - 21 commits from branch master
• 329d1a9e - Merge branch 'master' into 63-status-icon

Compare with previous version

Please review, @nik.

removed workflow::blocked label

mentioned in commit 43e6be1f

merged