feat: add pnpm support and compatble with latest vp2

[Mister-Hope]

Note: This PR is currectly blocked by a VuePress bug vuepress/core#866

• Switch to pnpm
• Refine plugin api
• Add pnpm install command in install part
• Update plugin usage docs
• Update theme usage docs
• Improve docs with new changes
• Update ci, drop node 12, add node 18 and use pnpm
• Update contributing guide
• Update demo
• Update template
• Add pnpm support for create package
• Update cookbook
• Update packages readme
• Rename and refine helpers
• Update migration guide
• Update how to apply search plugin
• Update release script
• Compatble with latest webpack bundler
• Compatble with latest vite bundler: [Bug report] Failed to use any non-ssr friendly package in client side vuepress/core#866

[gitguardian]

⚠️ GitGuardian has uncovered 33 secrets following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secrets in your pull request

GitGuardian id	Secret	Commit	Filename
2679276	Generic High Entropy Secret	2fc4686	docs/add-this/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/add-this/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/blog2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/blog2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/comment2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/comment2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/components/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/components/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/copy-code2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/copy-code2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/copyright2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/copyright2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/feed2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/feed2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/lightgallery/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/lightgallery/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/md-enhance/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/md-enhance/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/photo-swipe/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/photo-swipe/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/pwa2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/pwa2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/reading-time2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/redirect2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/redirect2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/sass-palette/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/sass-palette/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/seo2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/seo2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/sitemap2/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/sitemap2/src/.vuepress/theme.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/theme/src/.vuepress/config.ts	View secret
2679276	Generic High Entropy Secret	2fc4686	docs/theme/src/.vuepress/theme.ts	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code.
2. Replace and store your secrets safely. Learn here the best practices.
3. Revoke and rotate these secrets.
4. If possible, rewrite git history. Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data.

To avoid such incidents in the future consider

• following these best practices for managing and storing secrets including API keys and other credentials
• install secret detection on pre-commit to catch secret before it leaves your machine and ease remediation.

---

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[codecov]

Codecov Report

Merging #1731 (de726a0) into main (fef1ed7) will decrease coverage by 0.15%.
The diff coverage is 50.00%.

❗ Current head de726a0 differs from pull request most recent head 4a15fe7. Consider uploading reports for the commit 4a15fe7 to get more accurate results

@@            Coverage Diff             @@
##             main    #1731      +/-   ##
==========================================
- Coverage   76.95%   76.79%   -0.16%     
==========================================
  Files          52       52              
  Lines        1332     1336       +4     
  Branches      500      504       +4     
==========================================
+ Hits         1025     1026       +1     
- Misses        289      292       +3     
  Partials       18       18              

Impacted Files	Coverage Δ
packages/shared/src/node/locales/helpers.ts	68.75% <50.00%> (-3.98%)	⬇️

---

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[lgtm-com]

This pull request introduces 1 alert when merging 82401c3 into 1401242 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging 49743cf into 1401242 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging 003c4c9 into 1401242 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class