Changelog:

• New backend: SDL_GPU (uses SDL3's new GPU API)
• RichTextLabel can now contain url tags and a new findLinkAtPos function can check if the mouse is on top of any
• Added mapPixelToCoords and mapCoordsToPixel to CanvasSFML
• Added tgui::literals::percent namespace with the "_percent" user-defined literal
• Added support for using raylib backend on Android via raymob
• Fixed behavior of using showWithEffect or hideWithEffect with a Fade type while another fade animation wasn't finished yet