Use MobileWebShareButton schema to track interactions with
Additional changes: Fix how button is injected into page actions
bar as last AMC changes broke it.
Bug: T207280
Change-Id: Ie7d7ab6bc66df5ab30aaec77e2ee8583c69b8f48
Replace all occurrences of `M.require( 'mobile.startup/pathToModule' )`
with `M.require( 'mobile.startup' ).pathToModule`. Where multiple
requires existed, add an intermediate variable,
`var mobile = M.require( 'mobile.startup' )`, and dot off that.
This changes improves the consistency of MinervaNeue which currently
contains a mix of require styles and eliminates any deprecated requires.
Bug: T208915
Change-Id: If14f280672d914d07275197100b12421bb217b67