Added stylesheets generation for lichess boards

scripts/utils/encode.ts

@@ -1,7 +1,7 @@
-const fs = require("fs");
-const mime = require("mime");
+import fs from "fs";
+import mime from "mime";
 
-const encode = (filePath) => {
+const encode = (filePath: string) => {
   const data = fs.readFileSync(filePath).toString("base64");
 
   const type = mime.getType(filePath);
@@ -9,4 +9,4 @@ const encode = (filePath) => {
   return `data:${type};base64,${data}`;
 };
 
-module.exports = encode;
+export default encode;

scripts/utils/pieces.ts

@@ -12,4 +12,6 @@ const piecesColors = {
   w: "white",
 };
 
-module.exports = { colors: piecesColors, names: piecesNames };
+const pieces = { colors: piecesColors, names: piecesNames };
+
+export default pieces;