Merge #6123

6123: Update spanish.txt r=def- a=n0Ketchp

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## Checklist

- [ ] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test (especially base/) or added coverage to integration test
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: noKetchup <93238471+n0Ketchp@users.noreply.github.com>

data/languages/spanish.txt

@@ -1613,37 +1613,37 @@ Loading sound files
 == Cargando archivos de sonido
 
 Cancel
-== 
+== Cancelar
 
 File '%s' already exists, do you want to overwrite it?
-== 
+== El archivo '%s' ya existe, ¿quieres sobrescribirlo?
 
 Are you sure that you want to remove the player '%s' from your friends list?
-== 
+== ¿Estás seguro de que quieres quitar al jugador '%s' de tu lista de amigos?
 
 Are you sure that you want to remove the clan '%s' from your friends list?
-== 
+== ¿Estás seguro de que quieres quitar al clan '%s' de tu lista de amigos?
 
 Go back one tick
-== 
+== Retroceder un tick
 
 Go forward one tick
-== 
+== Avanzar un tick
 
 Go back one marker
-== 
+== Retroceder un marcador
 
 Go forward one marker
-== 
+== Avanzar un marcador
 
 Are you sure that you want to delete the demo '%s'?
-== 
+== ¿Estás seguro de que quieres eliminar la demo '%s'?
 
 Unable to delete the demo '%s'
-== 
+== No se pudo eliminar la demo '%s'
 
 Reset controls
-== 
+== Restablecer controles
 
 Are you sure that you want to reset the controls to their defaults?
-== 
+== ¿Estás seguro de que quieres restablecer a los controles predeterminados?