Call initTable() from getGroups() when finished to avoid a possible race-collision

Signed-off-by: DL6ER <dl6er@dl6er.de>

scripts/pi-hole/js/groups-common.js

@@ -5,7 +5,7 @@
  *  This file is copyright under the latest version of the EUPL.
  *  Please see LICENSE file for your rights under this license. */
 
-/* global apiFailure:false, utils:false */
+/* global apiFailure:false, utils:false, initTable:false */
 
 // eslint-disable-next-line no-unused-vars
 var groups = [];
@@ -18,6 +18,8 @@ function getGroups() {
     dataType: "json",
     success: function (data) {
       groups = data.groups;
+      // Actually load table contents
+      initTable();
     },
     error: function (data) {
       apiFailure(data);