VortexTracker 2.6 dev 20

Pre-release version. Date of build 4 Nov 2021.

• Fixed: After the Split pattern, length of the new pattern was not updated.
• Fixed: Crash when trying to save module with the 'read only' attribute.
• Changed: Prevents music module file from being opened twice.
• Changed: Option "Disable Ctrl+Click on sample/ornament" also disables Ctrl+Enter on a sample/ornament in the patterns editor.
• Added: A new monospaced font.