Feature request: customizable spinner/thinking words

Currently the spinner words shown while Claude is thinking ("Fermenting...", "Pondering...", etc.) are hardcoded. It would be great to allow users to customize these via settings.json — e.g. a spinnerWords array with custom strings.

This would pair nicely with the existing statusLine customization.

Use case: Users who want a personalized/fun experience — custom phrases in their native language, themed words, etc.

Proposed solution:

// ~/.claude/settings.json
{
  "spinnerWords": ["Варю борщ", "Допрашиваю нейроны", "Ищу смысл жизни"]
}

If the array is empty or absent — fall back to the current hardcoded list.