closes#122
please read the conversation to understand this change
The bug was that the reset-mode-to-config-default logic already existed
in the code (activeMode = loadMode()) but sat in a switch case that
could never execute, the bytes it matched (\r, \n, Ctrl+C, Ctrl+U) were
already intercepted and handled earlier in the same loop iteration with
an unconditional continue, so control never reached that switch
VERSE
7a97ea9016