Music Caster v5.19.8

• [Feat] Update from GUI
• [Fix] Cast syncing
• [Fix] Experimental theme setting
• [Fix] Fix crash when playing
• [Fix] Handling unresponsive cast device
• [Fix] Saving metadata without album art
• [Fix] Unexpected crash when chromecast stops working
• [Fix] Unexpected metadata while playing (dirty patch)
• [Fix] Windows-specific issues