Custom Unicode characters are not displayed completely in v7 release

Today I updated the V7 release,but the unicode character display is incomplete,my font is created by font converter,It was normal in previous versions.

Well, I compared the previous version and found that it was the problem of the define LV_USE_ARABIC_PERSIAN_CHARS;Just define it as 0

There was a bug in the Arabic processor. I’ve fixed it in master