language switcher location

I want switcher to be on the left side (English) of the same line of the social media icons on the same header (flags), to be on the right side (Arabic).
also I want to manage the location of swicher on the header
am beginner tell me step by step, and how I can do it witch files I will modify
my website: http://www.redseauae.com

https://wordpress.org/plugins/polylang/