Adds Icons to wizard spellbook UI

[IPling]

About the PR

Adds icons for each spell (Except Soulguard since it doesnt have a spell icon) to the wizard spellbook UI I made, since when making it I had no clue how to actually add them.

Preview image: (Made the window a bit bigger to show more spells for the preview.)

Why's this needed?

Visually looks much more pleasant and was previously suggested.

Changelog

(u)IPingu
(+)Adds Icons to spells in the wizard spellbook

[github-actions]

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[ZeWaka]

X

[Tarmunora]

when spell is ineligible in VR, top couple pixels of the icon for the next spell down is greyed out too

[IPling]

when spell is ineligible in VR, top couple pixels of the icon for the next spell down is greyed out too

Ah yeah, must have forgotten to test in VR.
Probably from the constant margins I had to do to get it just right, since sections really dont like it when I add images to em.
Will see what I can do tomorrow to fix that.

[IPling]

Looks good now.

[IPling]

Updated the preview image to match the 32x32

[mordent-goonstation]

Needs a changelog. I want to pull this one down locally and poke at it a bit.

[IPling]

Changelog made.