@ menu UI scrolling

[Brambor]

Summary

Interface "@ menu improvements"

Purpose of change

I misunderstood an issue, so I fixed this instead.
I guess more changes after #50892.
Added scrolling if needed, better safe than sorry.

Describe the solution

Make info bars scrollable for skills, effects, bionics, and proficiencies. Only effects needed that, but better safe than sorry.

Read about asthma

before

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after

Unify visual style and underlying code for scrollbars in the info bar for skills, effects, bionics, and proficiencies. And move the scrollbar to the far right.

Srollbar was one to the right

Move the skill tab scrollbar to the right to match others (and always show, if needed).

Srollbar to the right

before

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after

Fix: Pointing (with the mouse) at a menu selected the previous menu.

Mouse hover

In the speed tab, show !!! for values above 1000.

!!!

before

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after

Docs: Add implode, and explode keywords to string_split, and string_join, so people like me can find these in a minute rather than 15 minutes.

Search in Sublime Text

Refactor & pointless code removal.

Describe alternatives you've considered

Testing

Enlongate texts to see if wrapping works for skills, bionics, and proficiencies.
See that effects info wraps (e.g. on Asthma).
Resize to check scrollbar appears in the right format just when it's needed. And that no text in the skills tab is overwritten.
Removed spaces seem to be useless, visually checked that it looks the same.

Additional context

Things to do:
You cannot scroll up in the info panel (wrap down) unlike other tabs. This is caused by (only) if (info_line > 0) {--info_line};

Notes:
Stat info isn't scrollable, since it is very much line-by-line handmade.
Until now, it didn't occur to me that I could play two cataclysms at once!