fix(language-service): add document highlights support

[KazariEX]

fix #4850

[pkg-pr-new]

Open in Stackblitz

vue-component-meta

npm i https://pkg.pr.new/vuejs/language-tools/vue-component-meta@5263 

vue-component-type-helpers

npm i https://pkg.pr.new/vuejs/language-tools/vue-component-type-helpers@5263 

@vue/language-plugin-pug

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-plugin-pug@5263 

@vue/language-core

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-core@5263 

@vue/language-service

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-service@5263 

vue-tsc

npm i https://pkg.pr.new/vuejs/language-tools/vue-tsc@5263 

@vue/language-server

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-server@5263 

@vue/typescript-plugin

npm i https://pkg.pr.new/vuejs/language-tools/@vue/typescript-plugin@5263 

commit: 623488a