build: update npm install command to use --legacy-peer-deps

This change modifies the build scripts to use --legacy-peer-deps flag when installing npm dependencies to resolve potential peer dependency conflicts during the build process. The change is applied to both bash (build.sh) and batch (build.bat) build scripts.

frontend/node_modules/eslint/lib/rules/utils/unicode/index.js

@@ -3,14 +3,9 @@
  */
 "use strict";
 
-const isCombiningCharacter = require("./is-combining-character");
-const isEmojiModifier = require("./is-emoji-modifier");
-const isRegionalIndicatorSymbol = require("./is-regional-indicator-symbol");
-const isSurrogatePair = require("./is-surrogate-pair");
-
 module.exports = {
-	isCombiningCharacter,
-	isEmojiModifier,
-	isRegionalIndicatorSymbol,
-	isSurrogatePair,
+    isCombiningCharacter: require("./is-combining-character"),
+    isEmojiModifier: require("./is-emoji-modifier"),
+    isRegionalIndicatorSymbol: require("./is-regional-indicator-symbol"),
+    isSurrogatePair: require("./is-surrogate-pair")
 };

frontend/node_modules/eslint/lib/rules/utils/unicode/is-combining-character.js

@@ -9,5 +9,5 @@
  * @returns {boolean} `true` if the character belongs to the category, any of `Mc`, `Me`, and `Mn`.
  */
 module.exports = function isCombiningCharacter(codePoint) {
-	return /^[\p{Mc}\p{Me}\p{Mn}]$/u.test(String.fromCodePoint(codePoint));
+    return /^[\p{Mc}\p{Me}\p{Mn}]$/u.test(String.fromCodePoint(codePoint));
 };

frontend/node_modules/eslint/lib/rules/utils/unicode/is-emoji-modifier.js

@@ -9,5 +9,5 @@
  * @returns {boolean} `true` if the character is an emoji modifier.
  */
 module.exports = function isEmojiModifier(code) {
-	return code >= 0x1f3fb && code <= 0x1f3ff;
+    return code >= 0x1F3FB && code <= 0x1F3FF;
 };

frontend/node_modules/eslint/lib/rules/utils/unicode/is-regional-indicator-symbol.js

@@ -9,5 +9,5 @@
  * @returns {boolean} `true` if the character is a regional indicator symbol.
  */
 module.exports = function isRegionalIndicatorSymbol(code) {
-	return code >= 0x1f1e6 && code <= 0x1f1ff;
+    return code >= 0x1F1E6 && code <= 0x1F1FF;
 };

frontend/node_modules/eslint/lib/rules/utils/unicode/is-surrogate-pair.js

@@ -10,5 +10,5 @@
  * @returns {boolean} `true` if the character pair is a surrogate pair.
  */
 module.exports = function isSurrogatePair(lead, tail) {
-	return lead >= 0xd800 && lead < 0xdc00 && tail >= 0xdc00 && tail < 0xe000;
+    return lead >= 0xD800 && lead < 0xDC00 && tail >= 0xDC00 && tail < 0xE000;
 };