Mode to display all digits of Subscribers

When using numbers in units of K or M in English, separate them by three digits. However, in Japanese and Chinese, numbers are separated by four digits. Therefore, K and M are not commonly used in unit names. Youtube supports it. But it is hard to deal with 4 digits and unit name. It is enough if full digit display is possible there. To use it, enable it in the configuration panel. A comma separated by three digits is used when displaying all digits.