Remove Chat tab from mobile bottom navigation

The Chat navigation item has been removed from the mobile bottom navigation as per request, reducing the number of tabs and decluttering the navigation bar.

Author: DongDuong2001

components/mobile-bottom-nav.tsx

@@ -11,18 +11,7 @@ export function MobileBottomNav() {
   const navItems = [
     { href: "/dashboard", label: "Home", icon: LayoutDashboard },
     { href: "/dashboard/projects", label: "Projects", icon: FolderKanban },
-    { href: "/dashboard/chat", label: "Chat", icon: MessageCircle },
-    // { href: "/dashboard/meeting", label: "Meeting", icon: Calendar }, // Removed to make space (max 5 usually good, replaced least used or added logic)
-    // Actually user has 5 items previously. Adding 6th might crowd it. 
-    // Let's keep existing and replace one or just add it. The user didn't ask to replace. 
-    // But 6 items is tight. Let's see... 
-    // "Projects" "Chat" "Meeting" "Profile"
-    // Maybe collapse "Meeting"? Or just add it. standard is 4-5.
-    // Let's try adding it first. If it's too crowded we can adjust.
-    // Wait, the prompt said "Mobile Support Chat icon maybe put on the tab".
-    // I will swap "Meeting" if needed or just append. 
-    // Let's replace "Meeting" for now as it seems less "daily driver" than support?
-    // Or just make the list longer. The flex container creates space. 6 items might fit.
+    // Chat removed as per request
     { href: "/dashboard/meeting", label: "Meeting", icon: Calendar },
     { href: "/dashboard/settings", label: "Profile", icon: User },
   ]