Bump version to 0.4.0

Replace emoji with text symbols in compatibility table

Fix compatibility table formatting in docs

Make Rofi launcher search case-insensitive

Introduce single-action exit as the default and add interactive mode

Add support for bemenu launcher (#24)

Drop Walker launcher support

Notify user of network connection failures

Upgrade signal-hook from v0.3 to v0.4

Upgrade process-wrap from v8.2 to v9

Upgrade nix from v0.29 to v0.31

Migrate from clap v3 to v4

Migrate from iwdrs v0.1 to v0.2

Update dependencies

Update flake inputs