Everbound main-menu artwork

This image is used ONLY by the title_screen FancyMenu layout.
The Minecraft/Everbound title is part of this image, so the vanilla logo is hidden.
Buttons retain their Minecraft/NeoForge actions and vanilla textures.
Replace everbound_main_menu.png to update the title-screen art.
Use a DIFFERENT image file and layout for a future pause-menu design.
No pause-screen customization is installed.
