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
We are deprecating the MobileFrontend user module. Use the
mw.user module in core instead which supports the same methods.
Bug: T204866
Change-Id: I3d068198ab79fe85823a9d82ef4bd7ca07013d3b