[BUG] Main UI fails to draw on linux until window size change event

[ieee802dot11ac]

Describe the bug
On my Linux desktop, the latest commit does not render the UI until a window size change event triggers

To Reproduce

1. on Linux, clone and build main.
2. launch encore from build/Encore/Encore
3. when the window opens, notice the gray background.
4. change the window's size and notice the UI spawn in.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
On initial opening of a locally-built copy of main, the window appeared as this.

System Info (please complete the following information):

• OS: Arch Linux mainline, desktop/kde system profile, Wayland compositor
• Version: kernel version 6.10.6.arch1, system raylib version 5.0, Wayland version 1.23.0