[WIP] Translation system

[leonekmi]

I have begun the l10n of polr today :

• [x] Snippets : Tables & navbar
• [x] About page
• [x] Home page (short link page)
• [x] Login & register
• [x] Errors : 404 & 500
• [x] E-mails : Confirmation & Password lost
• [x] Reset password request
• [x] Setup
• [ ] Dashboard (admin & non-admin)
• [x] Modals
• [x] Controllers output
• [x] Error and notice models
• [ ] (maybe) API errors

PR on the fork are welcome !

This PR will close #319 and fixes #51

[overint]

Awesome work dude!

[exetico]

Is there any ETA for this? I would love to turning it into another language, but it would be a bit easier, if i had the whole set of strings in the /lang location (and final lang-support ofc.) :>

[exetico]

Inlogin.blade.php <small>@lang('account.forgot.question') <a href='{{route('lost_password')}}'>@lang('account.forgot.reset')</a></small> Should be changed to: <small>@lang('account.forgot.question') <a href='{{route('lost_password')}}'>@lang('account.forgot.resetpasswd')</a></small>

I translated all the strings from "en" to Danish - but would love to see the rest. I can't find the time to fix the rest right now :-)