Disallow initial-scale above 1.0

Or make the 0 button and side menu constant in size despite initial-scale

Or else sites can make the 0 button go off-screen, and I'm sure that's not intended.

Start from the issue's initial-scale concern and inspect the mobile viewport handling, then locate the 0 button and side menu in the frontend. Determine whether the intended fix is to reject scales above 1.0 or keep those controls constant; done means the controls remain usable and on-screen under the relevant scale settings.

Written by the indexing model from the issue text.