Fix code smell DisallowImplicitArrayCreation
Fix code smell DisallowImplicitArrayCreation

Implicit array creation is disallowed.
(SlevomatCodingStandard.Arrays.DisallowImplicitArrayCreation.ImplicitArrayCreationUsed)

We can initialize `$links` in the Draft alliance_option.php so that
it's clear to phpcs that we're not implicitly creating the array, but
this is then overridden by requiring the Default alliance_option.php,
where it is also initialized.

smrealms/smr,smrealms/smr,smrealms/smr