UI elements flash briefly upon first load

[hinto-janai]

OS & Version

Festival v1.0.1

Bug

egui will lazily load memory for elements.

This means on Festival's startups, tabs with many elements will briefly glitch a little before the elements are fully loaded.

This is most visible when switching through tabs upon startup.

Issue goes away once elements are in memory, but still, it happens on every startup.

Steps

1. Open Festival for the first time
2. Click tabs that have elements that haven't been loaded yet
3. See quick glitchy flash of elements loading

Fix

Somehow render and cache all elements on startup without affect the actual view.