Custom app info functions for less common compositors

While Gnome and KDE should work OOTB on Wayland, less common compositors require emacs-everywhere-app-info-function to be set to a custom app-info function.

Hyprland

(setq emacs-everywhere-window-focus-command (list "hyprctl" "dispatch" "focuswindow" "address:%w"))
(setq emacs-everywhere-app-info-function #'emacs-everywhere--app-info-linux-hyprland)

(require 'json)
(defun emacs-everywhere--app-info-linux-hyprland ()
  "Return information on the current active window, on a Linux Hyprland session."
  (let* ((json-string (emacs-everywhere--call "hyprctl" "-j" "activewindow"))
         (json-object (json-read-from-string json-string))
         (window-id (cdr (assoc 'address json-object)))
         (app-name (cdr (assoc 'class json-object)))
         (window-title (cdr (assoc 'title json-object)))
         (window-geometry (list (aref (cdr (assoc 'at json-object)) 0)
                                (aref (cdr (assoc 'at json-object)) 1)
                                (aref (cdr (assoc 'size json-object)) 0)
                                (aref (cdr (assoc 'size json-object)) 1))))
    (make-emacs-everywhere-app
     :id window-id
     :class app-name
     :title window-title
     :geometry window-geometry)))