feat(dashboard): add opengraph/oembed, Docker build

Dockerfile.dashboard

@@ -0,0 +1,17 @@
+FROM alpine:latest as builder
+
+RUN apk add nodejs-current yarn go git
+
+COPY dashboard/ /build
+WORKDIR /build
+
+RUN yarn install --frozen-lockfile
+RUN yarn build
+
+RUN go build -ldflags "-X dashboard/main.version=$(git rev-parse HEAD)"
+
+FROM alpine:latest
+
+COPY --from=builder /build/dashboard /bin/dashboard
+
+ENTRYPOINT /bin/dashboard