fix(lexicons): remove pure annotation from isArray
closes https://github.com/mary-ext/atcute/pull/32
Squashed commit of the following:
commit b059c7bbf199e80e0fa4681af05a60768d07cf3a
Author: Mary <git@mary.my.id>
Date: Mon May 19 06:21:00 2025 +0700
still need to keep it around
commit 2a1679a95f134bef1e1bbbd7402cb3152275a9f4
Author: Kot C <kot@kot.pink>
Date: Sun May 18 13:24:17 2025 -0700
Remove isArray (unused pure annotation)