feat: export languageToolsVersion

Author: sxzz

src/index.ts

@@ -12,3 +12,4 @@ export { useVueImportMap, mergeImportMap, type ImportMap } from './import-map'
 export { compileFile } from './transform'
 export type { Props as ReplProps } from './Repl.vue'
 export type { OutputModes } from './types'
+export { version as languageToolsVersion } from '@vue/language-service/package.json'