Updated Strings for Keyboard Shortcuts & added missing strings

- added missing String for "Pages Navigation", "Logged as" and "Unread Items"
- fixed some other strings

template/html/common/layout.html

@@ -61,7 +61,7 @@
                     <a href="{{ route "settings" }}" data-page="settings">{{ t "Settings" }}</a>
                 </li>
                 <li>
-                    <a href="{{ route "logout" }}" title="Logged as {{ .user.Username }}">{{ t "Logout" }}</a>
+                    <a href="{{ route "logout" }}" title="{{ t "Logged as" }} {{ .user.Username }}">{{ t "Logout" }}</a>
                 </li>
             </ul>
         </nav>
@@ -121,4 +121,4 @@
     </template>
 </body>
 </html>
-{{ end }}
+{{ end }}