Spanish (Spain) update - 2024/07/29 (#3266)

- More backported terms from PCSX2: save states and save state slots now share the same names.
- Backports of the Achievement texts.
- Added myself to the CONTRIBUTORS list, as all the Latin American Spanish translators were present and I was not.

CONTRIBUTORS.md

@@ -16,7 +16,8 @@ The following people have contributed to the project in some way, and are credit
 - posix - @Richard-L, blexx - German
 - @phoe-nix, @zkdpower - Chinese (Simplified)
 - Sorer - @MojoJojoDojo - Hebrew
-- Hipnosis - @Hipnosis183, MrHomunculus, @falsepopsky - Spanish
+- Hipnosis - @Hipnosis183, MrHomunculus, @falsepopsky - Spanish, Spanish (Latin America)
+- @IlDucci - Spanish (Spain)
 - @RaydenX93 - Italian
 - @r57zone - Russian
 - @6lackmag3 - Russian (Android)