added web export and docker files

docker/Dockerfile

@@ -0,0 +1,20 @@
+FROM barichello/godot-ci:4.6.2 AS builder
+
+
+WORKDIR /app
+
+COPY . .
+
+
+
+RUN mkdir -p /build
+
+RUN godot --headless --verbose --export-release "Web" "/build/index.html"
+
+
+FROM nginx:1.30.0
+
+COPY docker/nginx.conf /etc/nginx/default.conf
+
+COPY --from=builder /build /usr/share/nginx/html
+