chore: added frontend dockerfile

Author: ZhikharevAl

Dockerfile.frontend

@@ -0,0 +1,8 @@
+FROM nginx:1.25-alpine
+
+COPY frontend/ /usr/share/nginx/html/
+
+COPY nginx/nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]