配置-首页的bannner->heroImageStyle配置样式不生效

[zhangjinyuan190729]

• [x] I confirm that this is an issue rather than a question.

Bug report

What is actually happening?

配置-首页的bannner->heroImageStyle配置样式不生效 应该使用展开运算符

Other relevant information

• Your OS:
• Node.js version:
• VuePress version: 2.0.0-beta.67
• VuePress-theme-reco version: 2.0.0-beta.68
• Which package manager did you use for the install(npm/cnpm/yarn/pnpm)?npm

[recoluan]

收到，你方便提交一个pr吗

[zhangjinyuan190729]

已提交pr