perf(webui): refactor dashboard modules and optimize API performance

public/js/utils.js

@@ -47,5 +47,23 @@ window.utils = {
 
     getThemeColor(name) {
         return getComputedStyle(document.documentElement).getPropertyValue(name).trim();
+    },
+
+    /**
+     * Debounce function - delays execution until after specified wait time
+     * @param {Function} func - Function to debounce
+     * @param {number} wait - Wait time in milliseconds
+     * @returns {Function} Debounced function
+     */
+    debounce(func, wait) {
+        let timeout;
+        return function executedFunction(...args) {
+            const later = () => {
+                clearTimeout(timeout);
+                func(...args);
+            };
+            clearTimeout(timeout);
+            timeout = setTimeout(later, wait);
+        };
     }
 };