Hey, thanks for making this theme component! This is really useful for me 
I did have some feedback: some people don’t know what the share button is, so it’s more helpful to display an icon instead of saying the name of the button.
You can use this pwa_text to do so:
Install <b>%{siteTitle}</b> on your iOS device. Tap <img height="25" width="20" src="https://help.apple.com/assets/683A54F5227CBBDB98051B96/683A54FC545676DF600F97D4/en_US/d26fe35d3438fe81179a80c2b6c9b0c9.png" /> and then <b>Add to Home Screen.</b>
It looks like the following:
