UI improvement suggestions

[shapciptain]

• It generally does a good job encompassing the full map, but sometimes it does not zoom to the full extent of the created map
• Sometimes the lower tier links get cluttered, might be cool to have a clickable button that would collapse/expand a given connection at a certain level OR space out the lower tier connections more
  
• The preview window does not work in firefox
  
• a "clear" or back button would be nice, although it does a great job of seamlessly transitioning between different searches.
• as a note, i love the constructing layout percentage display, users love that shit and i certainly do lol
• a scroll over effect that highlights the direct connections would be neat