feat: fileContent preview with highlight+2

initializer-ui/src/main.ts

@@ -4,11 +4,17 @@ import Antd from 'ant-design-vue'
 import './index.css'
 import 'ant-design-vue/dist/antd.css';
 import 'highlight.js/styles/idea.css';
-import 'highlight.js/lib/common'
+import highlight from 'highlight.js/lib/core'
+import java from 'highlight.js/lib/languages/java';
+import xml from 'highlight.js/lib/languages/xml';
+import yaml from 'highlight.js/lib/languages/yaml';
 import highlightVuePlugin from '@highlightjs/vue-plugin'
 
-const app = createApp(App)
+highlight.registerLanguage('xml', xml)
+highlight.registerLanguage('yaml', yaml)
+highlight.registerLanguage('java', java)
 
+const app = createApp(App)
 app.use(highlightVuePlugin)
 app.use(Antd)
 app.mount('#app')
\ No newline at end of file