v4.9.2

Fixes

• Dark-mode background for disabled / readonly form-input and form-dropdown-input. Follow-up to v4.9.1: the new disabled:bg-gray-100 and read-only:bg-gray-100 modifiers had no dark: companion, so they won in both modes and overrode the base dark:bg-gray-700. In dark mode a disabled input rendered with a light gray-100 background against gray-400 text — hard to read and visually popped out as if active. Added dark:disabled:bg-gray-700 and dark:read-only:bg-gray-700 to form-input, and dark:disabled:bg-gray-700 to form-dropdown-input, so the disabled/readonly background now tracks the active theme.

Closes #18.