Refactor chat page

[chuanhu9]

1. extract some logics

• login logic
• chat logic

2. re-layout chat side bar
3. add a login modal for the chat page
4. fix some ui

• Empty component for the chat box

[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	ceada6d	✅ Finished

History Assignment

Files

File	Pull Request
projects/app/src/web/common/api/request.ts	🟢 Open #5254

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1 out of 2 committers have signed the CLA.

✅ c121914yu
❌ chuanhu9
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