Replaces the repeated-tap timeout cycling (0-10, one tap per minute)
with a dedicated screen and slider (1-15 minutes, then "Never"). The
screensaver toggle moves from its own System-menu row into this
screen, directly below the slider, since it only determines what
happens when the timeout fires.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
