allows players to send gems to each other; other minor related changes - fixes https://github.com/HabitRPG/habitrpg/issues/7227

website/client/js/controllers/memberModalCtrl.js

@@ -39,7 +39,7 @@ habitrpg
       };
 
       $scope.sendGift = function (uuid, gift) {
-        Members.transferGems(message, uuid, $scope.gift.gems.amount)
+        Members.transferGems($scope.gift.message, uuid, $scope.gift.gems.amount)
           .then(function (response) {
             Notification.text('Gift sent!')
             $rootScope.User.sync();

website/client/js/services/memberServices.js

@@ -63,7 +63,7 @@ angular.module('habitrpg')
     function transferGems (message, toUserId, gemAmount) {
       return $http({
         method: 'POST',
-        url: apiV3Prefix + '/members/send-private-message',
+        url: apiV3Prefix + '/members/transfer-gems',
         data: {
           message: message,
           toUserId: toUserId,