fix dashed legend when colored background; node analysis style half fixed; default nodes style huge somehwoe

added customwebpack as builder; added postcss to add style selector; shadowed necessary styles; switched to other fontawesome angular implementation

display drugs and nodes in analysis network; display custom nodes like patients; TODO: node type is not passed on from group AND node style in analysis is not loaded correctly, falls back to default.+

unpack changes analysis result which contain input network; save complete configuration in backend in order to restore configuration when revisiting the page