docs(changelog): vant@4.8.1

[chenjiahan]

New Features 🎉

• perf(TextEllipsis): reuse windowWidth to avoid repeat calculations by @inottn in #12471
• feat(TextEllipsis): add the toggle instance method by @wjw-gavin in #12472
• feat(cli): bump Rsbuild v0.2.2 by @chenjiahan in #12502

Performance 🚀

• perf(cli): disable source map to make compilation faster by @chenjiahan in #12484

Bug Fixes 🐞

• fix(cli): remove unused script in template by @chenjiahan in #12482
• fix(TextEllipsis): fix missing param for toggle by @wjw-gavin in #12483

Document 📖

• docs(collapse): fix missing ref tags by @RSS1102 in #12460
• docs(collapse): fix translation Error by @RSS1102 in #12464
• docs(dialog): fix translation Error and keep the sample code the same by @RSS1102 in #12465
• docs(TreeSelect): correct variable names by @inottn in #12469
• docs: add Rsbuild scaffold guide by @chenjiahan in #12475
• docs(image-preview): usage of Supplementing className by @RSS1102 in #12491
• docs(Quickstart): unplugin-vue-components usage updated ([文档]unplugin-vue-components@0.26.0 引用方式有误 #12499) by @wChenonly in #12500

Other Changes

• chore(workflow): add perf label for PR by @chenjiahan in #12473
• refactor(CLI): integrate Rsbuild to build website by @chenjiahan in #12481
• chore: bump Rspack 0.4.2 to fix Chinese path by @chenjiahan in #12496
• chore(deps): bump vite from 4.4.9 to 4.4.12 by @dependabot in #12493