VaxirMusic 1.0.1 - Setup fixes

Download setup.exe for 64-bit Windows 10 or Windows 11.

• Fixed white corners and flickering in the setup window, including disabled buttons during updates.
• Update now closes the installed VaxirMusic app before replacing files, and terminates instances that do not respond. Copies running from other folders are left alone.
• Removed the old autoplay/Discord status card from the player sidebar.
• Discord's Download button uses https://vaxirmusic.github.io/ as its fallback if the configuration is missing or invalid. Discord displays these buttons to other users, not when viewing your own activity.
• Saved favorites, history, and preferences are preserved. All playback tools remain included.

Validated with 80 setup UI checks, 29 installer action checks, 184 C++ checks, and 904 player UI checks.

Use setup.sha256 to verify the installer.