fix(build): fix generateNextJSAliases typescript eslint type error and revert malformed metadata file aliases

scripts/generateNextJSAliases.mts

@@ -37,8 +37,15 @@ Promise.all(
       const iconMetaData = JSON.parse(metaJson);
 
       const aliases = iconMetaData.aliases ?? [];
-      if (!aliases.includes(iconNameKebabCaseNextjsFlavour)) {
-        aliases.push(iconNameKebabCaseNextjsFlavour);
+      const hasAlias = aliases.some((alias: string | { name: string }) => {
+        if (typeof alias === 'string') {
+          return alias === iconNameKebabCaseNextjsFlavour;
+        }
+        return alias.name === iconNameKebabCaseNextjsFlavour;
+      });
+
+      if (!hasAlias) {
+        aliases.push({ name: iconNameKebabCaseNextjsFlavour });
       }
 
       let output = JSON.stringify({ ...iconMetaData, aliases }, null, 2);