Fixes webpack assets precompile script
Fixes webpack assets precompile script

We always need at least 1 image so the cp command won’t fail

mysteryihs/guan_shu_v2,spark-solutions/spark-starter-kit,mysteryihs/guan_shu_v2,spark-solutions/spark-starter-kit,mysteryihs/guan_shu_v2,spark-solutions/spark-starter-kit