agent: join connection when 1-time invitation short link is already secured (#1496)

* agent: join connection when 1-time invitation short link is already secured

* do not pass short link to join

* delete short link record after connection

src/Simplex/Messaging/Client.hs

@@ -107,6 +107,7 @@ module Simplex.Messaging.Client
     TBQueueInfo (..),
     getTBQueueInfo,
     getProtocolClientQueuesInfo,
+    nonBlockingWriteTBQueue,
   )
 where