Full width header
Fixing Content Area Background

- Now there is no vertical scroll when the content does not occupy the
full height;
- The background area / borders go until the bottom for longer pages
Updated FavIcon and Keycloak Logos

- more attractive favicon
- updated keycloak logos (bigger distance between the symbol and text)
Merge pull request #273 from cardosogabriel/master

Improvements in the console header, content area background, favicon and logos