Add hobbies page and update projects WIP UI

Introduced a new HobbiesComponent with routing and navigation updates. Removed unused ProjectDetailsComponent. Enhanced the projects page with a new 'work in progress' UI and improved .gitattributes for better file handling.

src/app/pages/projects/projects.component.html

@@ -1 +1,6 @@
-<p>Working in progress!</p>
+<div class="wip">
+  <div class="dots">
+    <span></span><span></span><span></span>
+  </div>
+  <p>Work in progress…</p>
+</div>