fixed minor theoretical UI bug

src/frontend/components/board-game.ts

@@ -39,15 +39,16 @@ class BoardGameComponent extends HTMLElement {
     for (const [slotName, templateName] of Object.entries(slotTemplateNames)) {
       this.querySelectorAll(`.${slotName}`).forEach((slot) => {
         if (slot.getAttribute("data-current-template") !== templateName) {
+          while (slot.lastChild) {
+            slot.removeChild(slot.lastChild);
+          }
+
           const template = this.querySelector(`template[name="${templateName}"]`);
           if (template) {
-            while (slot.lastChild) {
-              slot.removeChild(slot.lastChild);
-            }
-
             slot.appendChild(template.content.cloneNode(true));
-            slot.setAttribute("data-current-template", templateName);
           }
+
+          slot.setAttribute("data-current-template", templateName);
         }
       });
     }