Added streaming chat response and AI Pay

[Marchusness]

This pull request implements streaming chat responses to improve user experience. Additionally, this pull request adds AI Pay as an optional alternative to using an API key.

Index.html: Added metadata for AI Pay integration Package-lock.json & Package.json: Add AI Pay dependencies Src/Components/ChatView.jsx: Streamed response handling for improved real-time interaction Src/Components/Setting.jsx: AI Pay session management Src/Utils/Dalle.js & Davinci.js: Implement logic to use AI Pay as an AI provider when calling the AI APIs

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