New calculation for learning bonus
Instead of "stars for max. bonus" a threshold value "stars for max. bonus per transcript" should be given: 1 to 5 (by selecting star icons and tooltips describing what the stars stand for).
If a transcript receives more stars than the threshold value, only the max. bonus per transcript will be awarded, i.e. "max. bonus" divided by "transcripts for max. bonus".
If fewer stars are awarded than the threshold value, the bonus for this transcript will be: (Stars received below the threshold divided by the threshold value) x (max. bonus divided by transcripts for max. bonus).
The capping limit for the sum of all bonus points is max. bonus.