chore: accelerate docker compose by skipping frontend build

while waiting for a `docker-compose build`, I decided to go and skip the long steps around the frontend buildsthat are not required while in dev mode while using  `docker-compose` where we mount the local repo and build it inside docker.

Dockerfile

@@ -26,6 +26,8 @@ FROM --platform=${BUILDPLATFORM} node:20-bullseye-slim AS superset-node
 
 ARG NPM_BUILD_CMD="build"
 
+ARG DEV_MODE=false
+
 # Somehow we need python3 + build-essential on this side of the house to install node-gyp
 RUN apt-get update -qq \
     && apt-get install \
@@ -41,19 +43,32 @@ RUN --mount=type=bind,target=/frontend-mem-nag.sh,src=./docker/frontend-mem-nag.
     /frontend-mem-nag.sh
 
 WORKDIR /app/superset-frontend
+RUN mkdir -p /app/superset/static/assets && mkdir -p /app/superset/translations
 RUN --mount=type=bind,target=./package.json,src=./superset-frontend/package.json \
     --mount=type=bind,target=./package-lock.json,src=./superset-frontend/package-lock.json \
-    npm ci
+    if [ "$DEV_MODE" = "false" ]; then \
+        npm ci; \
+    else \
+        echo "Skipping npm ci in dev mode"; \
+    fi
 
 # Runs the webpack build process
 COPY superset-frontend /app/superset-frontend
-RUN npm run ${BUILD_CMD}
+RUN if [ "$DEV_MODE" = "false" ]; then \
+        npm run ${BUILD_CMD}; \
+    else \
+        echo "Skipping npm run ${BUILD_CMD} in dev mode"; \
+    fi
 
 # This copies the .po files needed for translation
 RUN mkdir -p /app/superset/translations
 COPY superset/translations /app/superset/translations
 # Compiles .json files from the .po files, then deletes the .po files
-RUN npm run build-translation
+RUN if [ "$DEV_MODE" = "false" ]; then \
+        npm run build-translation; \
+    else \
+        echo "Skipping translations in dev mode"; \
+    fi
 RUN rm /app/superset/translations/*/LC_MESSAGES/*.po
 RUN rm /app/superset/translations/messages.pot
 

docker-compose.yml

@@ -38,6 +38,8 @@ x-common-build: &common-build
   target: dev
   cache_from:
     - apache/superset-cache:3.10-slim-bookworm
+  args:
+    DEV_MODE: "true"
 
 services:
   nginx: