A perfect menu already exists for this. If you click the “Aa <puzzle piece” button, a bunch of website-specific settings pop up. “Search on Page” or “Install on Homescreen” would fit in perfectly here. Maybe under “Translate Page”.
This is close, but it’s not ideal: the drawer is an OS-wide feature, that puzzle menu is a relic of when the drawer didn’t exist. And its symbol suggests that it’s about text options.
