Integrate Gemini 1.0 Pro Chat Model and Google Embedding -001 Model for Enhanced Perplexica Capabilities

[Nipurn123]

This pull request that I have created introduces the integration of the Gemini 1.0 Pro Chat Model and the Google Embedding -001 Model into our Perplexica application . The following changes have been made to enhance our capabilities in generative AI and embeddings.

Key Changes

• New Models Added:

  • Integrated Gemini 1.0 Pro Chat Model for enhanced conversational capabilities.
  • Integrated Google Embedding -001 Model for improved text embeddings.

• File Modifications:

  • src/config.ts:
    • Added configuration settings for the Gemini API key.
  • src/lib/providers/gemini.ts:
    • Implemented functions to load the Gemini chat and embedding models.
    • Error handling added for model loading failures.
  • src/lib/providers/index.ts:
    • Updated the chat model and embedding model providers to include Gemini.
  • src/routes/config.ts:
    • Updated routes to handle Gemini API key retrieval.
  • ui/components/SettingsDialog.tsx:
    • Added input field for users to enter their Gemini API key in the settings dialog.

[Nipurn123]

Hi, I realised that I forgot to include the dependency @langchain/google-genai, so I've created this new pull request(#285) to address that. Additionally, since this is my first genuine PR, I would greatly appreciate it if you could take the time to review all the commits thoroughly. Thank you!

[Nipurn123]

I've made this change to the package.json within the same PR. I apologize for the cumbersome process I chose earlier to update in PR #285.

[ItzCrazyKns]

Hi, the changes LGTM. But you've added the next dependency in the package file of the backend.

[Nipurn123]

Hey I have removed that next dependency which by the way I am not sure why I have added before , but I have removed it from the backend package.json file

[ItzCrazyKns]

Hi, thanks. I will merge it after the testing