Fixing earthfile

Earthfile

@@ -0,0 +1,18 @@
+VERSION 0.7
+FROM node:lts-alpine3.18
+WORKDIR /build
+
+docker-multi:
+    BUILD --platform linux/amd64 --platform linux/arm64 +docker
+
+docker:
+    COPY package.json tsconfig.json .
+    COPY src ./src
+    COPY public ./public
+    RUN yarn install
+    RUN yarn build
+    WORKDIR /build
+    ENTRYPOINT ["node", "lib/index.js"]
+    ARG EARTHLY_TARGET_TAG
+    ARG TAG=$EARTHLY_TARGET_TAG
+    SAVE IMAGE --push docker.hibas123.de/screenshare:$TAG