Quick tweaks to syndicate clothes and the Hunter Montagne (#2460)

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## About The Pull Request
Title


![image](https://github.com/shiptest-ss13/Shiptest/assets/77556824/84818adc-97a7-4929-94bf-92a1e2a45458)

![image](https://github.com/shiptest-ss13/Shiptest/assets/77556824/6c132c53-14da-4af7-8bb8-68ba77af1169)

![image](https://github.com/shiptest-ss13/Shiptest/assets/77556824/3ae13eb3-0d82-41e2-a54f-f5bd64cd68be)

This PR also does some minor tweaks to the nanotrasen coat, hehe.

!!SURPRISE BONUS!!

This PR also resprites the syndicate mask, killing one of the oldest
sprites in the game. Credits to @axietheaxolotl for the original sprite.

![image](https://github.com/shiptest-ss13/Shiptest/assets/77556824/2348ef11-272a-43e4-864b-c74ddfd6c2d9)

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## Why It's Good For The Game
Mark my words, the Syndicate will have cohesion eventually. But for now,
cruft removal.
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## Changelog

:cl: PositiveEntropy, AxieTheAxolotl
imageadd: The syndicate operator vest and helmet, the syndicate
captain's garb, and the hunter montagne's garb have been adjusted with
better colors.
/:cl:

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