Groups - allow flagging group as su equivalent

app/assets/app/cobalt/Form.component.js

@@ -42,7 +42,7 @@ const template = `
                         <option
                             v-for="option of field.options"
                             :value="option.value"
-                            :selected="data[field.field] && data[field.field].includes(option.value)"
+                            :selected="data[field.field] && (data[field.field] === option.value || (Array.isArray(data[field.field]) && data[field.field].includes(option.value)))"
                         >{{ typeof option.display === 'function' ? option.display(option) : option.display }}</option>
                     </select>
                     <small class="form-text" style="color: darkred;" v-if="field.error">{{ field.error }}</small>

app/assets/app/resource/auth/Group.resource.js

@@ -62,6 +62,15 @@ class GroupResource extends CRUDBase {
                     required: true,
                     type: 'text',
                 },
+                {
+                    name: 'Superuser equivalent?',
+                    field: 'grants_sudo',
+                    type: 'select',
+                    options: [
+                        {display: 'Yes', value: true},
+                        {display: 'No', value: false},
+                    ],
+                },
                 {
                     name: 'Users',
                     field: 'user_ids',