Fix #10198: Rearrange Intro GUI to make button rows narrower

[2TallTyler]

Motivation / Problem

As seen above and described in #10198, the new three-across AI/GS/NewGRF buttons from #10058 can be excessively wide in some languages.

Description

Rearrange the buttons to only have two buttons per row (excluding climate selection, of course).

Also makes space for #7786! 😛

Closes #10198

Limitations

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

• The bug fix is important enough to be backported? (label: 'backport requested')
• This PR touches english.txt or translations? Check the guidelines
• This PR affects the save game format? (label 'savegame upgrade')
• This PR affects the GS/AI API? (label 'needs review: Script API')
  • ai_changelog.hpp, gs_changelog.hpp need updating.
  • The compatibility wrappers (compat_*.nut) need updating.
• This PR affects the NewGRF API? (label 'needs review: NewGRF')
  • newgrf_debug_data.h may need updating.
  • PR must be added to API tracker

[JGRennison]

The high score table button is probably the least useful of all the buttons on the main menu, so in that sense it is slightly odd that it is now the biggest.

(Perhaps this button should be moved to some long grass another window entirely?)

[LC-Zorg]

It looks good, although the three settings in one line better match the layout in the new game window. It's not possible to use shorter titles?

Anyway, it can also be done in another vertical way. ;)

[PeterN]

Anyway, it can also be done in another vertical way

Maybe when you use portrait monitor you can use a vertical layout...

[glx22]

Allowing multiline labels could be enough.

[2TallTyler]

Multiline labels is fine by me, although some translator training would be needed. 😃

[michicc]

I'm fine with re-arranging the buttons, but in the end this or multi-line buttons is better is somewhat of a translator thing.

I wouldn't mind either way.

[2TallTyler]

Two columns of buttons is stylistically consistent so I prefer this over multi-line buttons. I hope we'll eventually get #7786 to make the highscore table button an appropriate size again.