Add scrollbars to full-size VNC view

- Add CSS class .vnc-container.full-size with overflow: auto to show scrollbars
- Modify toggleZoom() function to toggle the full-size CSS class on the container
- When zoom button is active (full-size mode), scrollbars appear for navigation
- Maintains scaled view (no scrollbars) when zoom button is inactive

wssshd2/templates/vnc.html

@@ -63,6 +63,9 @@
             overflow: hidden;
             position: relative;
         }
+        .vnc-container.full-size {
+            overflow: auto;
+        }
         /* GNOME-like window decorations */
         .vnc-window {
             border: 1px solid #ccc;
@@ -281,12 +284,14 @@ function toggleZoom() {
 
     const zoomBtn = document.getElementById('zoomBtn');
     const zoomIcon = zoomBtn.querySelector('i');
+    const vncContainer = document.getElementById('vnc');
 
     if (zoomBtn.classList.contains('active')) {
         // Switch to scaled view (fit to window)
         zoomBtn.classList.remove('active');
         zoomBtn.title = 'Toggle Zoom (Scale/Fit)';
         zoomIcon.className = 'fas fa-search-plus';
+        vncContainer.classList.remove('full-size');
 
         // Enable scaling, disable clipping
         rfb.scaleViewport = true;
@@ -298,6 +303,7 @@ function toggleZoom() {
         zoomBtn.classList.add('active');
         zoomBtn.title = 'Toggle Zoom (Actual Size)';
         zoomIcon.className = 'fas fa-search-minus';
+        vncContainer.classList.add('full-size');
 
         // Disable scaling, enable clipping
         rfb.scaleViewport = false;