sway 1.9-rc4

Aleksei Bavshin (1):
      xdg-activation: distinguish activation and urgency requests

Ronan Pigott (1):
      launcher: track the seat in the launcher ctx

Simon Ser (3):
      commands: make primary_selection a config-only command
      Fix build with wlroots DRM backend disabled
      build: bump version to 1.9-rc.4