Fix dependency issue

[spenceralbrecht]

Add mainModel to dependency array for useEffect(). This is a fix for the issue I commented on here #2 (comment).

[nilooy]

Thanks for taking your time for the fix.
I was wondering if we should add the dependency, it's a normal warning comes with react, but does it stop the build process?

[spenceralbrecht]

It still builds but it seems like other people aren't aware of this and have thought that the build is completely broken like #2 (comment). Also the dependency is added already in other parts of the code, see below

character-animation-combiner/src/components/ChangeTexture.js

Line 23 in eb568a7

}, [mainModel]);

.