chore: move a variable into most local scope

src/components/MembersList.vue

@@ -289,7 +289,6 @@ export default class MembersList extends Vue {
   // Auto-refresh functionality
   countdownTimer = 10;
   autoRefreshInterval: NodeJS.Timeout | null = null;
-  lastRefreshTime = 0;
 
   // Track previous visibility members to detect changes
   previousVisibilityMembers: string[] = [];
@@ -816,17 +815,17 @@ export default class MembersList extends Vue {
   }
 
   startAutoRefresh() {
-    this.lastRefreshTime = Date.now();
+    let lastRefreshTime = Date.now();
     this.countdownTimer = 10;
 
     this.autoRefreshInterval = setInterval(() => {
       const now = Date.now();
-      const timeSinceLastRefresh = (now - this.lastRefreshTime) / 1000;
+      const timeSinceLastRefresh = (now - lastRefreshTime) / 1000;
 
       if (timeSinceLastRefresh >= 10) {
         // Time to refresh
         this.refreshData();
-        this.lastRefreshTime = now;
+        lastRefreshTime = now;
         this.countdownTimer = 10;
       } else {
         // Update countdown