Update GitLab CI to copy all files to public directory

- Changed from copying specific files to copying all files
- Added cleanup step to remove nested public directory
- This ensures all project files are deployed to GitLab Pages

.gitlab-ci.yml

@@ -2,8 +2,8 @@ pages:
   stage: deploy
   script:
     - mkdir public
-    - cp index.html public/
-    - cp calculations.js public/
+    - cp -r * public/ || true
+    - rm -rf public/public
   artifacts:
     paths:
       - public