search results: set autofocus on search input
grid layout: fix vertical alignment of content borders with breadcrumbs borders

mostly removed nested class="row" (only valid inside a container sized with 'col-*-*')
preferences: mark blueprints registered
added web.coreviews module, with users blueprint (mainly view for  user's photo). Registered in base app, TODO: make modular/replaceable
can register panel without app context but by passing app in kwargs
added password input widget, supports setting default autocomplete value to off (useful for 'new password' fields)
boolean widget: fix when on_off_mode is not used
added user preferences panel (change password, change photo)
init preferences service in base app