Demo update #4 — Meow Time: cozy cat room Steam update #668518

Optimized user experienceAdded style control to UI buttons in the productivity tools' furniture section.Added save and load functionality to the music player.Adjusted music player handling under different conditions.Added some sound effects in sticky note and edit modes.Restored the cat's hierarchical fluctuations due to cat bed settings.Bug fixes:Fixed a bug where the cat toy would disappear when accessed while the sticky note version was open.Fixed animation and behavior logic bugs caused by state switching when toggling the cat toy.Fixed bugs in furniture card and button sound effects in edit mode.