[Vue] Upgrade mini-css-extract-plugin 2.5.2
[Vue] Upgrade mini-css-extract-plugin 2.5.2

atomfrede/generator-jhipster,vivekmore/generator-jhipster,vivekmore/generator-jhipster,jhipster/generator-jhipster,vivekmore/generator-jhipster,ctamisier/generator-jhipster,ctamisier/generator-jhipster,atomfrede/generator-jhipster,liseri/generator-jhipster,jhipster/generator-jhipster,vivekmore/generator-jhipster,ctamisier/generator-jhipster,liseri/generator-jhipster,ctamisier/generator-jhipster,jhipster/generator-jhipster,liseri/generator-jhipster,atomfrede/generator-jhipster,atomfrede/generator-jhipster,jhipster/generator-jhipster,liseri/generator-jhipster,jhipster/generator-jhipster,vivekmore/generator-jhipster,atomfrede/generator-jhipster,liseri/generator-jhipster,ctamisier/generator-jhipster