icelandic translation

resources/lang/is-IS/header.php

@@ -0,0 +1,16 @@
+<?php
+
+return [
+
+    'change_language'       => 'Breyta tungumáli',
+    'last_login'            => 'Síðasta innskráning :time',
+    'notifications' => [
+        'counter'           => '{0} Engin skilaboð|{1} Skilaboð :count notification|[2,*] Skilaboð :count notifications',
+        'overdue_invoices'  => '{1} :count ógreiddan reikning|[2,*] :count ógreidda reikninga',
+        'upcoming_bills'    => '{1} :count væntanlegur reikningur|[2,*] :count væntanlegir reikningar',
+        'view_all'          => 'Birta allt'
+    ],
+    'docs_link'             => 'https://akaunting.com/docs',
+    'support_link'          => 'https://akaunting.com/support',
+
+];