v0.38.0

• Use --vim for vim keybindings in the chat.
• Add LLM metadata via .aider.models.json file (by @caseymcc).
• More detailed error messages on token limit errors.
• Single line commit messages, without the recent chat messages.
• Ensure --commit --dry-run does nothing.
• Have playwright wait for idle network to better scrape js sites.
• Documentation updates, moved into website/ subdir.
• Moved tests/ into aider/tests/.