Set map tiler URL from well known if available (#5633)

ElementX/Sources/Mocks/SDK/ClientSDKMock.swift

@@ -21,6 +21,7 @@ extension ClientSDKMock {
         var supportsOAuthCreatePrompt = true
         var supportsPasswordLogin = true
         var elementWellKnown: String?
+        var tileServerMapStyleURL: String?
         var validCredentials = (username: "alice", password: "12345678")
         
         // MARK: Session
@@ -68,6 +69,7 @@ extension ClientSDKMock {
                 throw MockError.generic
             }
         }
+        tileServerReturnValue = configuration.tileServerMapStyleURL.map { TileServerInfo(mapStyleUrl: $0) }
     }
 }