Docs/update truefoundry

[rishiraj-tf]

• Minor changes to truefoundry.mdx
• corrected image paths
• corrected few lines which were incorrect

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Important

Updates TrueFoundry integration documentation with improved language, image paths, and routing/redirects for better clarity and navigation.

• Documentation:
  • Updates truefoundry.mdx with corrected image paths and improved language for clarity.
  • Adds detailed integration guide for TrueFoundry with Langfuse, including setup and usage instructions.
• Routing:
  • Adds integration_truefoundry.ipynb to cookbook/_routes.json with docsPath set to integrations/gateways/truefoundry.
• Redirects:
  • Adds redirect in next.config.mjs from /docs/integrations/other/truefoundry to /integrations/gateways/truefoundry.

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[rishiraj-tf]

@jannikmaierhoefer kindly review and merge the PR. Thanks!

[rishiraj-tf]

@jannikmaierhoefer reminder for this --> Docs/update truefoundry #1876

[rishiraj-tf]

@jannikmaierhoefer another reminder for this
The title monitor Truefoundry models with langfuse is technically incorrect please merge this request soon

[jannikmaierhoefer]

Thanks @rishiraj-tf & apologies for the slow turnaround on this.
Could you please apply the changes of the guide to the .ipynb file instead of the .mdx file as the .mdx file is automatically created based on the notebook.