I'm new to WordPress. there is a problem which really freaks me out. the WordPress(v5) which my host installed for me was all in Persian; I changed the user language to English, the main interface changed to English but still live editor and plugins were in Persian. I figured out removing the language folder from wp-content solves the problem but when I upload a custom Persian theme into Wordpress everything turns back to the time before removing the language folder. also, note that changing the website language from the setting makes the website LTR which is not what I want besides telling the search engines that my website is in English which is not.