chore(docker): copy minify scripts into builder stage

Copy scripts/minify into the builder image so containerized builds can
run the minify step. Add the missing final newline to Dockerfile.

Add node_module to docker ignore

.dockerignore

@@ -0,0 +1 @@
+**/node_modules

Dockerfile

@@ -34,6 +34,7 @@ FROM deps AS builder
 
 WORKDIR /src
 
+COPY scripts/minify ./scripts/minify
 COPY go.mod go.sum ./
 COPY Makefile ./
 COPY cmd ./cmd
@@ -76,4 +77,4 @@ ENV DOCKER_HOST=unix:///var/run/docker.sock
 
 WORKDIR /app
 
-CMD ["/app/run"]
+CMD ["/app/run"]