fix(ux): fix checkbox styling in the choose what to sync screen
fix(ux): fix checkbox styling in the choose what to sync screen

Fixes #3338

shane-tomlinson/fxa-content-server,shane-tomlinson/fxa-content-server,vladikoff/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,swatilk/fxa-content-server,shane-tomlinson/fxa-content-server,vladikoff/fxa-content-server,swatilk/fxa-content-server,vladikoff/fxa-content-server,swatilk/fxa-content-server