refactor: remove Playwright dependencies and configuration, update test cases, and clean up code formatting

- Removed Playwright test dependencies from package.json and deleted playwright.config.ts.
- Updated LoginForm component and its tests for improved readability and consistency.
- Cleaned up App.vue and PublicLayout.vue by adjusting import formatting.
- Fixed missing newlines in CSS and other files for better formatting.
- Updated userStore to ensure proper object syntax.
- Refactored LoginView to enhance code clarity and maintainability.

docker/nginx.conf

@@ -0,0 +1,18 @@
+server {
+  listen 80;
+  root /usr/share/nginx/html;
+  index index.html;
+
+  location /api/ {
+    proxy_pass http://api:8080/;
+    proxy_http_version 1.1;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+  }
+
+  location / {
+    try_files $uri $uri/ /index.html;
+  }
+}