Added the possibility to enable/disable the features DynamicScrollDescriptions and AutomaticHintGeneration

Fixed json-payload for OnLineFacts and LineFacts + Adjustments so that SupplementaryAngles-Scroll works again + Adjusted GET on Scroll/List-endpoint in DisplayScrolls so that it tries several times, because server mostly returns a 500 on first try

Fixed bug occuring when assigning fact during hint-animation + Set default of selected scroll to OppositeLen