build: add Docker deployment

Created a Dockerfile and nginx configuration and added environment
variables into the codebase to support Docker compose.

ref: N25B-282

.dockerignore

@@ -0,0 +1,11 @@
+node_modules
+dist
+Dockerfile
+.dockerignore
+.git/
+.githooks/
+__mocks__/
+test/
+eslint.config.js
+jest.config.js
+README.md