core: 4.5.4.2 (add stateTVar imports)

src/Simplex/Chat/Store.hs

@@ -259,6 +259,7 @@ module Simplex.Chat.Store
 where
 
 import Control.Applicative ((<|>))
+import Control.Concurrent.STM (stateTVar)
 import Control.Exception (Exception)
 import qualified Control.Exception as E
 import Control.Monad.Except