- in manual mode blink between 'manual' and lvl+direction indication on
display 2
- when setting custom target length only blink value not "soll"
- reduce brightness from 12 to 8 because of high display temperature
To abstract rather complex functions for 7 segment displays e.g. blink text, scroll
text... a class was created.
This makes it possible to have 2 instances for displayTop and
displayBottom resulting in no duplicate code
Fix bug where sartup randomly crasehd several times because spi config
was initialized with random data -> init with 0
Fix bug where length now was not truncated resulting in flickerin
Fix bug in welcome message where hello string contained random data