Allow editing min and max number of groups in management panel

app/controllers/concerns/params_concerns/projects.rb

@@ -16,7 +16,7 @@ module ParamsConcerns
             { tag_ids: [] }].freeze
 
     FULL = %i[
-      status status_message presentation_location presented_at
+      status status_message presentation_location presented_at min_number_of_groups max_number_of_groups
     ].freeze
 
     ##

app/views/admin/projects/edit/_project_form.html.erb

@@ -140,6 +140,20 @@
     <tr>
       <td> <%= f.text_field :presentation_location %></td>
     </tr>
+    <tr>
+      <td>
+        <%= number_field_popover f, :min_number_of_groups,
+                                 CourseConfiguration.human_explanation(:min_number_of_groups),
+                                 required: true, min: 1 %>
+      </td>
+    </tr>
+    <tr>
+      <td>
+        <%= number_field_popover f, :max_number_of_groups,
+                                 CourseConfiguration.human_explanation(:max_number_of_groups),
+                                 required: true, min: 1 %>
+      </td>
+    </tr>
   </table>
 
 </div>