fix freshness bug with local chats: When core marks a chat verified for a name, it now first un-verifies the user's other chats of the same kind:

- a contact name covers contacts and business chats;
  - a channel name covers channels.

bots/api/TYPES.md

@@ -1930,6 +1930,7 @@ Ok:
 - contactSLinkData_: [ContactShortLinkData](#contactshortlinkdata)?
 - ownerVerification: [OwnerVerification](#ownerverification)?
 - addressChanged: bool
+- existingChat_: [ChatInfo](#chatinfo)?
 
 OwnLink:
 - type: "ownLink"
@@ -2541,6 +2542,7 @@ Ok:
 - groupSLinkData_: [GroupShortLinkData](#groupshortlinkdata)?
 - ownerVerification: [OwnerVerification](#ownerverification)?
 - addressChanged: bool
+- existingChat_: [ChatInfo](#chatinfo)?
 
 OwnLink:
 - type: "ownLink"