Rebind PUBLIC_* env vars inside web container entrypoint (#1363)

web/entrypoint.sh

@@ -1,4 +1,9 @@
 #! /bin/sh
+
+# Rebind env vars to PUBLIC_ for svelte
+export PUBLIC_IMMICH_SERVER_URL=$IMMICH_SERVER_URL
+export PUBLIC_IMMICH_API_URL_EXTERNAL=$IMMICH_API_URL_EXTERNAL
+
 if [ "$(id -u)" -eq 0 ] && [ -n "$PUID" ] && [ -n "$PGID" ]; then
     exec setpriv --reuid "$PUID" --regid "$PGID" --clear-groups node /usr/src/app/build/index.js
 else