Add swayosd for on-screen volume and brightness indicators (#274)

* Make these executable

* Replace pavucontrol with wiremix (#225)

Add to install

* Revert "Replace pavucontrol with wiremix (#225)"

This reverts commit 620b397859.

* Add swayOSD to show brightness and volume status

* Add swayOSD migration

* Move swayosd from desktop to hyperlandia

---------

Co-authored-by: David Heinemeier Hansson <david@hey.com>
Co-authored-by: Roeland <roel4d@webding.org>

install/hyprlandia.sh

@@ -2,5 +2,5 @@
 
 yay -S --noconfirm --needed \
   hyprland hyprshot hyprpicker hyprlock hypridle polkit-gnome hyprland-qtutils \
-  walker-bin libqalculate waybar mako swaybg \
+  walker-bin libqalculate waybar mako swaybg swayosd \
   xdg-desktop-portal-hyprland xdg-desktop-portal-gtk