refactor: Replace all occurencec of gtkmm.h and only use the necessary headers

include/modules/sni/host.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
-#include <gtkmm.h>
+#include <glibmm/refptr.h>
+#include <giomm.h>
 #include <json/json.h>
 #include <tuple>
 #include <dbus-status-notifier-watcher.h>

include/modules/sni/item.hpp

@@ -1,7 +1,11 @@
 #pragma once
 
 #include <dbus-status-notifier-item.h>
-#include <gtkmm.h>
+#include <glibmm/refptr.h>
+#include <gtkmm/eventbox.h>
+#include <gtkmm/image.h>
+#include <gtkmm/icontheme.h>
+#include <gtkmm/menu.h>
 #include <json/json.h>
 #include <libdbusmenu-gtk/dbusmenu-gtk.h>
 #ifdef FILESYSTEM_EXPERIMENTAL

include/modules/sni/watcher.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
-#include <gtkmm.h>
+#include <giomm.h>
+#include <glibmm/refptr.h>
 #include <dbus-status-notifier-watcher.h>
 
 namespace waybar::modules::SNI {

include/modules/sway/workspaces.hpp

@@ -7,6 +7,7 @@
 #include "util/json.hpp"
 #include "IModule.hpp"
 #include "modules/sway/ipc/client.hpp"
+#include <gtkmm/button.h>
 
 namespace waybar::modules::sway {