Update all references from Next.js 15 to Next.js 16

Co-authored-by: rezwana-karim <126201034+rezwana-karim@users.noreply.github.com>

Author: Copilot

src/app/blog/page.tsx

@@ -25,7 +25,7 @@ const blogPosts = [
     featured: true,
   },
   {
-    title: "Building with Next.js 15 and Radix UI",
+    title: "Building with Next.js 16 and Radix UI",
     description: "A deep dive into our tech stack choices and why we chose these technologies.",
     author: "Development Team",
     date: "2024-01-10", 

src/app/changelog/page.tsx

@@ -67,7 +67,7 @@ const changelogEntries = [
           "Basic responsive design system",
           "Tailwind CSS 4 integration",
           "Radix UI component library",
-          "Next.js 15 with App Router",
+          "Next.js 16 with App Router",
           "TypeScript configuration",
         ],
       },

src/app/events/page.tsx

@@ -29,8 +29,8 @@ const upcomingEvents = [
     featured: true,
   },
   {
-    title: "Next.js 15 Deep Dive",
-    description: "Explore the latest features in Next.js 15 and learn how to build modern web applications.",
+    title: "Next.js 16 Deep Dive",
+    description: "Explore the latest features in Next.js 16 and learn how to build modern web applications.",
     date: "2024-02-22",
     time: "19:00 UTC", 
     duration: "1.5 hours",

src/app/projects/page.tsx

@@ -215,7 +215,7 @@ export default function ProjectsPage() {
                 implementation for best practices in web development.
               </p>
               <div className="flex flex-wrap gap-2">
-                <span className="bg-secondary text-secondary-foreground text-xs px-2 py-1 rounded">Next.js 15</span>
+                <span className="bg-secondary text-secondary-foreground text-xs px-2 py-1 rounded">Next.js 16</span>
                 <span className="bg-secondary text-secondary-foreground text-xs px-2 py-1 rounded">Tailwind CSS 4</span>
                 <span className="bg-secondary text-secondary-foreground text-xs px-2 py-1 rounded">Radix UI</span>
                 <span className="bg-secondary text-secondary-foreground text-xs px-2 py-1 rounded">TypeScript</span>