feat: #fe write type declaration for damerau-levenshtein

frontend/src/js/damerau-levenshtrin.d.ts

+declare module "damerau-levenshtein" {
+  export interface LevenshteinDistance {
+    steps: number;
+    relative: number;
+    similarity: number;
+  }
+
+  export default function levenshtein(
+    dis: string,
+    dat: string,
+  ): LevenshteinDistance;
+}

frontend/src/js/fight_scene.ts

@@ -4,7 +4,6 @@ import Spear from "./spear";
 import Player from "./player";
 import backend from "./backend";
 
-// TODO: write interfaces
 import levenshtein from "damerau-levenshtein";
 
 import * as Types from "../../../backend/src/types";