fix(frontend): .env reaches the build for $env/static, the runtime image stays without it; eslint + prettier as an alternative to biome; image named with dashes

template/{{ part_dir }}/{% if linter == 'eslint' %}.prettierignore{% endif %}

@@ -0,0 +1,14 @@
+# Package managers
+package-lock.json
+pnpm-lock.yaml
+yarn.lock
+bun.lock
+bun.lockb
+
+# Written by copier and the infra template, not by hand
+.copier/
+*.md
+renovate.jsonc
+
+# Miscellaneous
+/static/