fixed two files that had the wrong extension

Re-fixed thumbnail for the t60 hotfix that broke the thumbnail

oopsie (reverted to prior version to undo last version's thumbnail break, ignore this update)

Hotfix for T60 PA GFX typo

Changes,

-Changed Thumbnail to be cleaner.

UTCM comes with:
-AI equipment integration
-full Scavenging integration
-cosmetic faction integration
-specops jetpack tech (flavored as a short-term booster pack rather than the massive setup the full power armor jetpack required)
-ECR compatibility (by adding in deathclaw tech gridboxes but not the techs, while repositioning vanilla-UTCM techs to have holes to let the deathclaw techs work)
-TTR "Compatibility measures" erasure so other mods can actually be compatible without breaking the game like TTR did
-PAR tech tree/modules rework (full rebalance)
-PAR Equipment Designer rework (added upgrades that unlock further based on what techs you have)
-proofread and Americanized localization for the non-gamedata loc touched by UTCM