Advanced settings: Make 'controls', 'graphics', 'sound' more accessible

Advanced settings: Make 'controls', 'graphics', 'sound' more accessible

Move client 'controls', 'graphics' and 'sound' into the first level to be
immediately visible to players who may not realise these come under 'client'.
These are the settings that new players or players on a server are likely to
want to access while not having understanding of what comes under 'client'.

Leave client 'network' and 'advanced' under 'client' as these are more
advanced.

Move 'show entity selection boxes' from the bizarre location in
'client'>'network' to 'graphics'>'in game'>'advanced'.