[FIX] web: base.css: fixed width for input of file type under oe_avatar

Browsers add different width to input of file type, messing up the usability of the
product formview placing  a 'phantom' box in front of the options. Added a specific
css rule for this case.
[I18N] Update 8.0 translations with latest changes from Launchpad
Merge branch '8.0' of https://github.com/odoo/odoo into 8.0-win32