Bump version to 0.5.0
cargo: Update dependencies
Remove unwanted unreachable macro

This causes issues on sway 1.9, where a wl_output::enter hits the
fallback fn.
cargo: Update dependencies
Bump version to 0.4.0
Restrict wl_output to version 3
Update dependencies version: wayland-*,sctk
readme: Add discuss section
Add configurable color to headline and prompt
Update greetd_ipc dependency
Read result for CancelSession properly
Workaround for recent layer-shell impl changes
Update Cargo.lock
Bump version to 0.2
cargo: Use the greetd_ipc crate
Update greet_proto
Fix default configuration file format

Default config was still using json, however it was changed to toml in