Handle discovery trophies for 50, 75, 100, 125, 150, 175, 200 discoveries, once added to the API

SVG images already committed. Must modify their IDs to match the API IDs.

<img width="226" height="485" alt="Image" src="https://github.com/user-attachments/assets/1754f72b-9443-4469-b4d9-86306b4661a1" />