v0.24.0

Added

• Desktop widget: one fixed card like the popout's: a large picture area (640 × 360; dark with the
  "Preview is off" hint and Start button, live picture with Stop on hover), to its right the status
  with on-air dot, tracking mode and speed chips, below it zoom with − / +, the camera's saved
  presets (recall) and Sleep / Wake. Stopping the preview frees the camera (#83).

• Presets: with obsbot4linux 0.13 (preset_state) the popout's Presets card and the desktop widget take
  the preset list from the state events and no longer send preset list; older versions keep the
  request (#83).

Removed

• The "Tracking mode on wake" setting and the code that applied a mode whenever the camera woke from
  sleep: the widget no longer overrides the camera. A stored wakeTrackingMode value stays unused in
  the settings file (#75).

Changed

• Sleep card: "Wake-up zoom" and "Start mode on wake" are now "Zoom at power-on" and "Tracking mode at
  power-on", with a hint that the camera applies them at power-on only, not when it wakes from sleep
  (measured on a Tiny 2 Lite) (#75).

• Gestures card: Direction change is disabled (still showing the camera's value) while Dynamic zoom is
  off, since it only reverses Dynamic zoom's direction, and has a description saying so (#81).