Implemented sorting of events. Bug with separator display.
Implemented sorting of events. Bug with separator display.

Some separators are hidden while they should show up. Opposite for others.
Example: on current mocks, sort by price descending, categories 0,2,3,4, and
a separator appears incorrectly on top and is missing after 3rd event.

susanctu/Crazyfish-Public,susanctu/Crazyfish-Public