Rename Anthropic API in Claude API

[micz]

Anthropic has renamed Anthropic API in Claude API, so we need to update the descriptions and label accordingly in ThunderAI, the label in GitHub and in micz.it.

See: https://www.reddit.com/r/ClaudeAI/comments/1nip3mm/unifying_the_claude_brand/

[github-actions]

Released in version 3.7.0.