add claude-3-opus as a translation generator

[fauzaanu]

Before adding this:

• Move to a vps to ensure egress costs control
• can only be used after logging in (misuse, opus is expensive 7x more than gpt3)
• angle for monetization? could be.
• create a PromptEngine : automated prompt engineering and quality controls

[fauzaanu]

Sonnet making mistakes while opus is on point. Impossible to add this without a good monetization approach.

1. Run ads - everyone hates ads and this is not mass media
2. Donations - Not possible at the time.
3. Paid product - Opus is extremely expensive and subscription that people can afford may not cover the costs
4. Bring Your own API keys - I think the only way forward.