Changes
- Major parts of the code have been redesigned.
- Support for controlling the volume of each audio application separately has been added.
- Support for moving Pulseaudio streams to a new default sound device has been added.
- Support for setting the default unit check interval has been added.
- Support for defining the number of mouse wheel scroll lines has been added.
- A DBus interface for controlling DSBMixer has been added.
- DSBMixer now uses KStatusNotifierItem instead of QSystemTrayIcon to support D-Bus StatusNotifierItem and XEmbed system tray icons.
- Support for Qt6 has been added.
- The build system has been changed to CMake.