docs: Add Claude 4 Sonnet to docs (#31225)

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <git@maxdeviant.com>

docs/src/ai/models.md

@@ -7,6 +7,8 @@ Zed’s plans offer hosted versions of major LLM’s, generally with higher rate
 | Claude 3.5 Sonnet | Anthropic | ❌       | 60k            | $0.04            | N/A               |
 | Claude 3.7 Sonnet | Anthropic | ❌       | 120k           | $0.04            | N/A               |
 | Claude 3.7 Sonnet | Anthropic | ✅       | 200k           | N/A              | $0.05             |
+| Claude 4 Sonnet   | Anthropic | ❌       | 120k           | $0.04            | N/A               |
+| Claude 4 Sonnet   | Anthropic | ✅       | 200k           | N/A              | $0.05             |
 
 ## Usage {#usage}