Patch Embed styles with prefixing (#1799)

.vscode/settings.json

embed/package.json

embed/postcss.config.js

embed/src/App.jsx

...Container/ChatHistory/HistoricalMessage/Actions/index.jsx

...dow/ChatContainer/ChatHistory/HistoricalMessage/index.jsx

...hatWindow/ChatContainer/ChatHistory/PromptReply/index.jsx

...components/ChatWindow/ChatContainer/ChatHistory/index.jsx

...components/ChatWindow/ChatContainer/PromptInput/index.jsx

embed/src/components/ChatWindow/ChatContainer/index.jsx

embed/src/components/ChatWindow/Header/index.jsx

embed/src/components/ChatWindow/index.jsx

embed/src/components/Head.jsx

embed/src/components/OpenButton/index.jsx

embed/src/components/ResetChat/index.jsx

embed/src/components/SessionId/index.jsx

embed/src/components/Sponsor/index.jsx

embed/src/index.css

embed/src/main.jsx

embed/src/static/tailwind@3.4.1.js