chore(playground): set forceconnected=false in all did-connect, make demo more simpler

[LancelotLewis]

关联 Issue

relates https://team.arcblock.io/comment/discussions/0JPrdd52CVlEWmo1-XaTOR8rPfuEUviL4

主要改动

1. all demos in the playground don't need a login account to proceed

界面截图

测试计划

• [x] tested in dev

检查清单

• [x] 本次变更新增了文件需要被包含在 npm 包的文件，且对应 package.json 的 files 字段包括了这些新增的文件
• [x] 本次变更需要更新文档，并且我更新了相关文档，如果还没更新文档，请新建文档更新的 Issue 并关联上来
• [x] 本次变更的地方已经有测试覆盖，并且我调整了变更部分的测试覆盖
• [x] 本次变更的兼容性测试覆盖了 PC 端
• [x] 本次变更的兼容性测试覆盖了移动端【手机浏览器、钱包内置浏览器】
• [x] 本次变更中有用户输入的逻辑，用户输入的后端、前端都增加了校验、错误提示
• [x] 本次变更中有添加或更新 npm 依赖，并且没有导致同 1 个依赖出现多个版本【检查 yarn.lock 的 diff】
• [x] 本次变更我已经把 ArcBlock 的依赖升级到了最新：https://www.notion.so/arcblock/JS-afb6960ba36546fa8ddc638fc47e5f51

[github-actions[bot]]

Coverage after merging into main

85.43% ( 774 / 906 )

core/authenticator: 91.45% ( 107 / 117 )

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core/handler: 94.31% ( 282 / 299 )

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util.ts                       | 96.88%   | 100%     | 100%     

core/state: 94.92% ( 187 / 197 )

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socket.ts                     | 100%     | 83.33%   | 94.44%   
util.ts                       | 76.92%   | 100%     | 98.15%   

core/types: 92.94% ( 79 / 85 )

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