Unify store UI options

[glebm]

Unifies "Show Item Graphics" and "Visual Store" boolean options into a single enum.

Also moves floating info box option next to the store UI option as they are somewhat related.

[yuripourre]

@glebm this one could be controversial. Some people, when they are (store) farming for an specific item, need to know what is the position of the item in the list of items. And once you find it (if you can see the graphics) you know exactly how the item will look like.

Visual Store doesn't make clear the order of items.

I personally don't use the "Show Item Graphics" but I know some players do.

[glebm]

@yuripourre This only changes 2 boolean options to a single 3-value enum option, it doesn't change what's available. The 2 boolean options didn't make sense because there were redundant option combinations:

Show Item Graphics	Visual Store	Result
Off	Off	Text store
On	Off	Text store with item graphics
On	On	Visual store
Off	On	Visual store

[yuripourre]

Oh, @glebm understood it now. When I read the description (without reading the code) I thought both options will become a single boolean.

My apologies.

[yuripourre]

Nice solution!