✨ Improve build process

Remove hardcoded yarn version on devenv

docker/devenv/Dockerfile

@@ -162,7 +162,6 @@ RUN set -eux; \
     tar -xf /tmp/nodejs.tar.gz --strip-components=1; \
     chown -R root /usr/local/nodejs; \
     corepack enable; \
-    corepack install -g yarn@4.3.1; \
     npx playwright install --with-deps chromium; \
     rm -rf /tmp/nodejs.tar.gz;
 
@@ -277,14 +276,6 @@ RUN set -eux; \
   ./emsdk activate latest; \
   rustup target add wasm32-unknown-emscripten;
 
-USER penpot
-
-RUN set -eux; \
-    corepack enable; \
-    corepack install -g yarn@4.3.1;
-
-USER root
-
 WORKDIR /home
 
 COPY files/nginx.conf /etc/nginx/nginx.conf

docker/devenv/files/start-tmux.sh

@@ -8,10 +8,12 @@ source ~/.bashrc
 
 echo "[start-tmux.sh] Installing node dependencies"
 pushd ~/penpot/frontend/
-yarn install
+corepack up;
+yarn install;
 yarn run playwright install --with-deps chromium
 popd
 pushd ~/penpot/exporter/
+corepack up;
 yarn install
 yarn run playwright install --with-deps chromium
 popd