home-cursor: add sway support (#6459)

modules/config/home-cursor.nix

@@ -56,6 +56,11 @@ let
           description = "The cursor size for hyprcursor.";
         };
       };
+
+      sway = {
+        enable = mkEnableOption
+          "sway config generation for {option}`home.pointerCursor`";
+      };
     };
   };
 
@@ -197,5 +202,18 @@ in {
           if cfg.hyprcursor.size != null then cfg.hyprcursor.size else cfg.size;
       };
     })
+
+    (mkIf cfg.sway.enable {
+      wayland.windowManager.sway = {
+        config = {
+          seat = {
+            "*" = {
+              xcursor_theme =
+                "${cfg.name} ${toString config.gtk.cursorTheme.size}";
+            };
+          };
+        };
+      };
+    })
   ]);
 }