merge: fix custom emoji pagination when searching - fixes #490 (!489)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/489

Closes #490

Approved-by: fEmber <acomputerdog@gmail.com>
Approved-by: Marie <marie@kaifa.ch>

packages/frontend/src/pages/custom-emojis-manager.vue

@@ -98,6 +98,9 @@ const selectedEmojis = ref<string[]>([]);
 const pagination = {
 	endpoint: 'admin/emoji/list' as const,
 	limit: 30,
+	offsetMode: computed(() => (
+		(query.value && query.value !== '') ? true : false
+	)),
 	params: computed(() => ({
 		query: (query.value && query.value !== '') ? query.value : null,
 	})),