Refactor and update project components for Next.js 15 compatibility (#6)

* refactor: update all modules to latest version

* refactor: update layout to match nextjs 15 convention

* fix: implement TopProgressBar as Client

* fix: remove unnecessary locale prop

* fix: update postcss.config.js export

* fix: comment out styles

* fix: ref usage in useIntersectionObserver and update Navbar

* chore: performance optimizations

* fix: simplify Loading component structure

* refactor: move ProjectCard component and add prop types validation

postcss.config.js

@@ -1,6 +1,5 @@
 module.exports = {
-  plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
-  },
-}
+	plugins: {
+    "@tailwindcss/postcss": {},
+	},
+};