refactor: extend optional length limit up to 10000 symbols

Author: Student-Java

src/common/config.js

@@ -11,7 +11,7 @@ module.exports = {
   MONGO_CONNECTION_STRING: process.env.MONGO_CONNECTION_STRING,
   JWT_SECRET_KEY: process.env.JWT_SECRET_KEY,
   AUTH_MODE: process.env.AUTH_MODE === 'true',
-  MAX_SYMBOLS_PER_OBJECT: 5000,
+  MAX_SYMBOLS_PER_OBJECT: 10000,
   MAX_OPTIONAL_PROPERTIES: 100,
   LOGS_DIR: path.join(__dirname, '../../logs'),
   JWT_EXPIRE_TIME: '4h'