Add `Contributor.available_again_after_date` property

scipost_django/edadmin/templates/edadmin/monitor/_hx_college_fellow_activity_table.html

@@ -69,7 +69,7 @@
 	  {{ fellowship.contributor.EIC_in_stage_in_refereeing|length }}
 	</td>
 	{% if fellowship.contributor.current_unavailability_periods %}
-	  <td colspan="2"><em class="text-muted">unavailable</em></td>
+	  <td colspan="2" class="text-center"><em class="text-muted">unavailable up to {{ fellowship.contributor.available_again_after_date }}</em></td>
 	{% else %}
 	  <td class="text-center">{{ fellowship.nr_visible }}</td>
 	  <td class="text-center">

scipost_django/scipost/models.py

@@ -161,6 +161,12 @@ class Contributor(models.Model):
         """Check if Contributor is currently not marked as unavailable."""
         return not self.unavailability_periods.today().exists()
 
+    @property
+    def available_again_after_date(self):
+        unav = self.unavailability_periods.today().first()
+        if unav:
+            return unav.end
+
     @property
     def is_scipost_admin(self):
         """Check if Contributor is a SciPost Administrator."""