FlexFlyout v0.3.0

Added

• Linux: FlexFlyout runs on Wayland desktops with layer-shell — KDE
  Plasma, sway, Hyprland and other wlroots ones (not GNOME, not X11). It
  follows MPRIS players and the PipeWire or PulseAudio volume, with the
  same flyout, controls, pinning and dragging, tray menu (StatusNotifier-
  Item), settings window and "Start at login" (an XDG autostart entry).
  Cover art comes from files, data: URLs, or the web address a player
  gives (Spotify) — the only network access.
• Linux release archive (x86_64-unknown-linux-gnu, glibc 2.35 or newer)
  with a desktop entry and the icon, and a PKGBUILD for Arch Linux and
  derivatives.
• The settings window shows the version, with links to the website and to
  supporting the development.

Changed

• The playback buttons are grayed out while no player is there.
• egui's bundled fonts are no longer built in (their licence is not an OSI
  one): on Windows the flyout uses the Windows fonts (Segoe UI and Yu
  Gothic, or Arial and Meiryo where they are missing), as before, and on
  Linux the desktop's (through fontconfig). The executable is about
  0.8 MB smaller.

Code signing policy