A collection of quick fixes and cleanups:
- Removed --dbus-signals-enabled. DBus signals are now always enabled when --dbus-client is enabled.
- Fix the active Preset icon display which was sometimes incorrect after DPMS-sleep or errors.
- Fix a code regression when handling non-DDC-capable VDUs (fix status=-3020 exception).
- The About-Window now includes counts of set_vcp/NVRAM-writes for each VDU.
- Hovering over a VDU-name in the main-window reveals the write count for that VDU.
- Minor changes to reduce unnecessary work and improve log messages.
The new write-counts may help with designing schedules or lux-profiles that minimise writes.