Move api url setting to docker build arg

.woodpecker.yml

@@ -6,6 +6,7 @@ pipeline:
       repo: elara6331/lure-web
       dockerfile: docker/Dockerfile
       platforms: linux/amd64,linux/arm64
+      build_args: api_url=https://api.lure.elara.ws
       tag: latest
     when:
       branch: public

docker/Dockerfile

@@ -1,10 +1,13 @@
 FROM node:19-alpine
 
+ARG api_url
+ENV LURE_WEB_API_URL $api_url
+
 RUN apk add git
 RUN git clone https://gitea.elara.ws/Elara6331/lure-web
 RUN cd lure-web && \
     npm i && \
-    LURE_WEB_API_URL='https://api.lure.elara.ws' npm run build
+    npm run build
 
 WORKDIR /lure-web
 ENTRYPOINT node build