Fix navigation menu tab switching function name

Resolved ReferenceError: showView is not defined when clicking sites in nav menu.

Changes:
- Changed showView() to attachView() - the correct function name
- Added manualNavigationMode=true to stop auto-rotation on manual navigation
- Added markActivity() to reset inactivity timer
- Added inactivityExtensionUntil=0 to clear extensions
- Added additional logging for debugging
- Added error logging for invalid view indices

This makes navigation menu behavior consistent with nextTab() and
previousTab() functions throughout the codebase.

install_kiosk_0.9.8.sh

@@ -5306,8 +5306,15 @@ function createWindow(){
     }
     const viewIndex=tabIndexToViewIndex[tabIndex];
     if(viewIndex!==undefined&&viewIndex>=0&&viewIndex<views.length){
+      console.log('[NAV] Switching to view index '+viewIndex);
+      manualNavigationMode=true;
       currentIndex=viewIndex;
-      showView(currentIndex);
+      attachView(currentIndex);
+      markActivity();
+      inactivityExtensionUntil=0;
+      console.log('[NAV] Navigation complete → manualNavigationMode=TRUE');
+    }else{
+      console.error('[NAV] Invalid view index:',viewIndex);
     }
   });