add some comments to useIsOverflowing

frontend/src/hooks/useIsOverflow.ts

@@ -1,31 +1,69 @@
 import * as React from 'react';
 
+
+/**
+ Hook to detect if an element's content overflows its container
+
+
+    Parameters:
+    - ref: React ref to the element to monitor
+    - callback: Optional callback function called when overflow state changes
+
+    Returns: boolean | undefined - true if overflowing, false if not, undefined before first check
+
+    Usage example:
+
+        useEffect(() => {
+        if (isOverflow) {
+            // Do something
+        }
+        }, [isOverflow]);
+
+        const scrollableRef = useRef<HTMLDivElement>(null);
+        const isOverflow = useIsOverflow(scrollableRef);
+
+        Fallback example (for browsers without ResizeObserver):
+
+        return (
+        <div ref={scrollableRef} className="h-64 overflow-y-auto">
+            {Content that might overflow}
+        </div>
+        );
+*/
+
+
 export const useIsOverflow = (ref: React.RefObject<HTMLElement | null>, callback?: (isOverflow: boolean) => void) => {
+  // State to track overflow status
   const [isOverflow, setIsOverflow] = React.useState<boolean | undefined>(undefined);
 
   React.useLayoutEffect(() => {
     const { current } = ref;
 
+    // Function to check if element is overflowing
     const trigger = () => {
       if (!current) return;
       
+      // Compare scroll height (total content height) vs client height (visible height)
       const hasOverflow = current.scrollHeight > current.clientHeight;
       setIsOverflow(hasOverflow);
       
+      // Call optional callback with overflow state
       if (callback) callback(hasOverflow);
     };
 
     if (current) {
+      // Use ResizeObserver for modern browsers (real-time detection)
       if ('ResizeObserver' in window) {
         const resizeObserver = new ResizeObserver(trigger);
         resizeObserver.observe(current);
         
-        // Cleanup function
+        // Cleanup function to disconnect observer
         return () => {
           resizeObserver.disconnect();
         };
       }
       
+      // Fallback for browsers without ResizeObserver support
       // Add a small delay to ensure the element is fully rendered
       setTimeout(trigger, 0);
     }