Allow disabling or customizing thinking status words

Feature Request

The random English words shown while Claude Code is thinking/processing (e.g. "mulling", "forging", "percolating") cannot be disabled or customized.

Request: Add a setting in settings.json to:

• Disable the thinking status words entirely
• Or allow customizing/replacing them

Why: For non-English users these random words are distracting and provide no useful information. A simple spinner or no text at all would be preferred.

Suggested setting:

{
  "thinkingStatusWords": false
}