Crosspost doesn’t allow to search community by instance

[romeoacevedo]

Describe the bug
When I try to search a community by instance on crossposts, no results come up.

To Reproduce
Steps to reproduce the behavior:

1. Tap on crosspost
2. Search for community to crosspost
3. Add an "@" to search by instance
4. No results come up

Expected behavior
The community of the instance should come up

Screenshots

Smartphone (please complete the following information):

• Device: iPhone 11 Pro Max
• OS: iOS 18.6.1