Update spanish.c

[BCfplox]

-Correct some sentences, and reduce long sentences with synonyms to fit them in the text box.

[Ouaz]

The build has failed, because there's some errors:

• Line 747, comma is missing at the end

{TR_HOTKEY_MOTHBALL_TOGGLE, "Suspender/Reactivar edificio" }

• Line 1290, the checker says that there's an ASCII character at the end of the line...

  D:\a\augustus\augustus\src\translation\spanish.c:1290:73: error: stray '\5' in program
  1290 |     {TR_PARAMETER_VALUE_FORMATION_ATTACK_GOLD_STORES, "Tiendas de oro"},<U+0005>

  And that's right:

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To fix, edit spanish.c on your branch (here: https://github.com/BCfplox/augustus/blob/patch-1/src/translation/spanish.c), commit, and it will automatically update this PR.