Optimize the screen space for dependencyBrowseGraph

[MasseGuillaume]

• The width was limited to 1280, I just take whatever the browser can give be.
• Remove the default 8px margin from the browser default
• Remove the title, it takes vertical space
• The scale was a bit small for large graph, start really far away
• Remove the graph margin, but keep the organization left to right (default is top-down).