ui: fix modal show event firing after render

[greatgitsby]

show_event must fire before render. very important for NavWidget as it does setup on the show_event hook

before (note text flash before animation)

Screen.Recording.2025-11-21.at.8.57.22.PM.mov

after

Screen.Recording.2025-11-21.at.8.56.34.PM.mov

[github-actions]

raylib UI Preview

All Screenshots

[greatgitsby]

not worth trying to fix right now, there are bugs with the ordering of when show/hide/render is called with modals that make this very tricky.

putting effort into stack manager instead, should fix all the weirdness

this bug is separate and is value-add for the time being

[sshane]

not worth trying to fix right now, there are bugs with the ordering of when show/hide/render is called with modals that make this very tricky.

but were the bugs?

[greatgitsby]

but were the bugs?

🔜

[sshane]

*what