wl-mirror v0.16.4

This release contains a few improvements to the wl-present script, but no changes to wl-mirror itself.

Changes

• Allow specifying additional options after wl-present mirror. This allows starting wl-mirror directly in fullscreen via wl-present, e.g. wl-present mirror --fullscreen-output HDMI-A-1 --fullscreen.
• Allow overriding slurp in wl-present via WL_PRESENT_SLURP environment variable.
• Automatically detect fuzzel as a dmenu replacement in wl-present
• Add kanshi configuration example to README
• Update wl-present man page