Added initial window manager page

docs/alpine-desktop-setup/graphical-session/window-manager.md

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+# Window manager
+
+Wayfire is a lightweight, functional and good looking wayland window manager which should have been installed during setup. Although normally Wayfire can be configured with the *Wayfire Config Manager* or through `.config/wayfire.ini` it now has to be done with the appropiate `home-manager` config file. 
+
+Most applications which have to be auto started should already have been through `runit` which gets started upon logging into the Wayfire session. These "services" are located in `~/.service` and can be managed with the `sv` command.
+
+## Quick overview
+
+Here is an overview of a few of the services and applications which have been installed through `home-manager`:
+
+### Applications
+
+* *Fuzzel*, a fast and versatile application launcher (started with `<super> KEY_SPACE`). 
+
+* *Nemo*, an feature rich file manager developed for the Cinnamon desktop (started with `<super> KEY_E`). 
+
+* *File-roller*, an archive manager from Gnome which intergrates well with Nemo.
+
+* *Firefox*, a popular open-source web-browser.
+
+### Foreground services
+
+* *Waybar*, a taskbar. it's wayland native and comes with most required functionality including a tray on which a few applets like the Bluetooth manager, USB manager and Network manager can reside.
+
+* *WF-background*, a simple wallpaper daemon.
+
+* *SwayNC*, a notification daemon and center (started with `<super> KEY_TAB`). It's very customisable and has a lot of features like Power Menus and Music players.
+
+* *Pa-notify*, an audio level notifier. It simply displays the current audio level through a notification.
+
+### Background services
+
+* *Pipewire*
+
+* *Kanshi*
+
+* *Playerctld*
+
+* *XDG-desktop-portal-wlroots*
+
+Most services can be configured in their appropriate `home-manager` file.