variables: binds:allow_pin_fullscreen (#881)

pages/Configuring/Variables.md

@@ -415,6 +415,7 @@ _Subcategory `group:groupbar:`_
 | movefocus_cycles_fullscreen | If enabled, when on a fullscreen window, `movefocus` will cycle fullscreen, if not, it will move the focus in a direction. | bool | true |
 | disable_keybind_grabbing | If enabled, apps that request keybinds to be disabled (e.g. VMs) will not be able to do so. | bool | false |
 | window_direction_monitor_fallback | If enabled, moving a window or focus over the edge of a monitor with a direction will move it to the next monitor in that direction. | bool | true |
+| allow_pin_fullscreen | If enabled, Allow fullscreen to pinned windows, and restore their pinned status afterwards
 
 ### XWayland