Separate third-party JS libraries into standalone projects

[capdiem]

• drawflow
• echarts
• gridstack MGridStack组件是否可以添加sizeToContent，cellHeight属性 #2253
• baidumap
• markdown-it
• monaco-editor
• pdf.js refactor(PdfJS): move the PdfMobileViewer component to a standalone project #2335
• swiper
• xgplayer
• quill editor Split Editor #1673
• vidtor

[github-actions]

Hello @capdiem. We like your proposal/feedback and would appreciate a contribution via a Pull Request by you or another community member. We thank you in advance for your contribution and are looking forward to reviewing it!

你好 @capdiem。我们喜欢您的建议/反馈，并希望通过您或其他社区成员的Pull Request做出贡献。我们预先感谢您的贡献，并期待着对其进行审查！

[capdiem]

The Quill Editor may be considered for direct removal instead of separation, and it's recommended to use a third-party Blazor library: https://github.com/Blazored/TextEditor