Fix accidentally breaking the tgui choice

Author: Oblisk234

tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/blindness_choice.tsx

@@ -1,6 +1,6 @@
 import { FeatureChoiced, FeatureDropdownInput } from "../base";
 
-export const blindness_choice: FeatureChoiced = {
+export const blindness: FeatureChoiced = {
   name: "Blindness",
   component: FeatureDropdownInput,
 };