feat: disable adding remote domain users - WPB-10789

[KaterinaWire]

WPB-10789 [iOS] Disable adding remote domain users in Proteus Conversations

Issue

Filter search result depends on the protocol of the conversation:

• disable adding remote domain users in Proteus Conversations
• do not show users from other domains in the conversation creation interface when Proteus is default protocol of the team.

Solution

We need to add conditions to filter out federated users in different parts: add members, create conversation, search users, open 1:1. For this reason, I created IsFederationSearchAllowedUseCase, which contains these conditions:

• if the protocol of a conversation is Proteus, do not show users from other domains in the interface to add users;
• if Proteus is the default protocol of the team, do not show users from other domains in the conversation creation interface.

Also, soon we will need to extend these conditions with another one, which is necessary for one of the customers.

Testing

1. Create Proteus conversation.
2. Try to add users with other domain.

Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

---

UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.

[github-actions]

Test Results

   16 files     17 suites   15m 33s ⏱️
8 427 tests 8 396 ✅ 31 💤 0 ❌
8 448 runs  8 417 ✅ 31 💤 0 ❌

Results for commit d6717a7.

♻️ This comment has been updated with latest results.

[jullianm]

Nice work 👍