feat(language-service): support global directives completion

[KazariEX]

resolve #4988

[pkg-pr-new]

Open in Stackblitz

vue-component-meta

npm i https://pkg.pr.new/vuejs/language-tools/vue-component-meta@4989

@vue/language-plugin-pug

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-plugin-pug@4989

vue-component-type-helpers

npm i https://pkg.pr.new/vuejs/language-tools/vue-component-type-helpers@4989

@vue/language-core

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-core@4989

@vue/language-server

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-server@4989

@vue/language-service

npm i https://pkg.pr.new/vuejs/language-tools/@vue/language-service@4989

vue-tsc

npm i https://pkg.pr.new/vuejs/language-tools/vue-tsc@4989

@vue/typescript-plugin

npm i https://pkg.pr.new/vuejs/language-tools/@vue/typescript-plugin@4989

commit: e4149ad