refactor: replace setTimeout with setImmediate

[nieyuyao]

As mentioned in the comment, it seems more reasonable to replace setTimeout with setImmediate.

1. volar uses vscode-languageserver-node, which uses setImmediate to process messages.
2. the built-in HTML plugin of vscode also uses setImmediate to wrap the runner.
3. this ensures the order of message processing.

🤔

[pkg-pr-new]

commit: cae1a7b

@volar/eslint

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/eslint@234

@volar/jsdelivr

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/jsdelivr@234

@volar/kit

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/kit@234

@volar/language-core

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/language-core@234

@volar/language-server

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/language-server@234

@volar/language-service

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/language-service@234

@volar/monaco

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/monaco@234

@volar/source-map

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/source-map@234

@volar/test-utils

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/test-utils@234

@volar/typescript

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/typescript@234

@volar/vscode

pnpm add https://pkg.pr.new/volarjs/volar.js/@volar/vscode@234

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[johnsoncodehk]

Just made some changes to fix browser compatibility. Thanks!