Added translation using Weblate (English (United States))

en_US.php

+<?php
+$LANG['auth']['signup'] = '';
+$LANG['auth']['login'] = '';
+$LANG['page']['credits'] = '';
+$LANG['footer']['executionTime'] = '';
+$LANG['generic']['generic'] = '';
+$LANG['generic']['error'] = '';
+$LANG['error']['generic'] = '';
+$LANG['error']['loggedIn'] = '';
+$LANG['error']['notLoggedIn'] = '';