Redesign account games managment with SBAdmin them

* new private layout for account related view (based on bootsrap 3 * * SBAdmin theme)
* add angular for making view a little bit more interactive

Account Game main features :

* add multiple games at once (with game name autocomplete)
* delete multiple at once
* be filtered by game/extension/unplayed/recent with more fiendly routes
* are now correctly ordered by game name

Also cleanup old dead code & improve complex code to be more readable
(extension ordering for exemple)