santitize, popup class

front/src/Api/Events/OpenPopupEvent.ts

@@ -13,6 +13,7 @@ export const isOpenPopupEvent = new tg.IsInterface()
         targetObject: tg.isString,
         message: tg.isString,
         buttons: tg.isArray(isButtonDescriptor),
+        popupClass : tg.isString,
         input: tg.isBoolean
     }).get();
 

front/src/Api/iframe/ui.ts

@@ -85,7 +85,7 @@ export class WorkAdventureUiCommands extends IframeApiContribution<WorkAdventure
         }),
     ];
 
-    openPopup(targetObject: string, message: string, buttons: ButtonDescriptor[], input: boolean = false): Popup {
+    openPopup(targetObject: string, message: string, buttons: ButtonDescriptor[], popupClass : string = "", input: boolean = false): Popup {
         popupId++;
         const popup = new Popup(popupId);
         const btnMap = new Map<number, () => void>();
@@ -113,6 +113,7 @@ export class WorkAdventureUiCommands extends IframeApiContribution<WorkAdventure
                         className: button.className,
                     };
                 }),
+                popupClass,
                 input
             },
         });