Option to center lyrics horizontally

[pedrolcl]

https://sourceforge.net/p/dmidiplayer/tickets/21/

Feature request to center the lyrics horizontally in the lyrics display area.

Currently, all lyrics are left-aligned, which can be distracting or less visually balanced, especially in full-screen or stage settings. Having an option to align them at the center would greatly improve the user experience in live or educational contexts.