Allow saving profile with enter key

src/partials/messenger.receiver/me.edit.html

@@ -14,7 +14,7 @@
        <md-card-content>
                <md-input-container class="md-block">
                        <label translate>messenger.MY_PUBLIC_NICKNAME</label>
-                       <input ng-disabled="ctrl.isSaving()" ng-model="ctrl.controllerModel.nickname">
+                       <input ng-disabled="ctrl.isSaving()" ng-model="ctrl.controllerModel.nickname" ng-keypress="ctrl.keypress($event)">
                </md-input-container>
        </md-card-content>
 </md-card>