Fix footer link color (#3754)

Update the typography color in the footer to be readiable on a dark
background

Fixes #3753

Author: theskumar

hypha/templates/base-apply.html

@@ -133,7 +133,7 @@
 {% block footer %}
     {% if settings.utils.SystemMessagesSettings.footer_content %}
         <footer class="footer px-4 py-10 shrink-0  bg-dark-blue">
-            <div class="wrapper wrapper--large prose max-w-none text-white">
+            <div class="wrapper wrapper--large prose prose-invert max-w-none text-white">
                 {{ settings.utils.SystemMessagesSettings.footer_content|safe }}
             </div>
         </footer>