Use capital letters in line with the other messages

Author: vmcj

webapp/templates/jury/contest.html.twig

@@ -197,7 +197,7 @@
                     <th>Languages</th>
                     <td>
                         {% if contest.languages is empty %}
-                            <em>all globally enabled languages:</em>
+                            <em>All globally enabled languages:</em>
                             {% set allowedLanguages = languages %}
                         {% else %}
                             {% set allowedLanguages = contest.languages %}