`AdvancedStats` was locally assuming that the only changes in mods that
are relevant to it are if the mods are `IApplicableToDifficulty`. This
is not true, as other mods (such as `IApplicableToRate` mods, or more
recently, Flashlight) can also affect star difficulty, which is shown on
one of the bars in `AdvancedStats`.
This used to already be the case prior to b419ea7, but in a very
roundabout way. Changes to the value of the star difficulty bindable -
including indirect changes via the set of active mods changing - would
trigger the wedge display to regenerate and load asynchronously.
b419ea7 accidentally broke this by moving down the bindable retrieval to
a lower level, at which point `WedgeInfoText` would only receive the set
of mods selected at the time at which a given beatmap was selected, and
not receive any further updates, breaking the BPM display updating in
real time (as `WedgeInfoText` could not be aware that rate-changing mods
were even in effect).
To resolve, explicitly reload the wedge's contents on mod changes.
Makes it look awkward when changing difficulty via mod settings for
example.
Now the changes should instead only affect the displayed components which consume it
directly.