Automatically add accounts to a known list after performing the appropriate actions

Resolves: #238 (closed) In the new version, the account is automatically added to the known list after the:

• add to cart, fast broadcast, and finalize transaction actions
• adding account to a watched
• setting account as working

clive/__private/core/accounts/account_manager.py

@@ -139,7 +139,9 @@ class AccountManager:
         self._working_account = (
             value if isinstance(value, WorkingAccount) else WorkingAccount(Account.ensure_account_name(value))
         )
-        self.known.add(value)
+
+        if not self.is_account_known(value):
+            self.known.add(value)
 
     def unset_working_account(self) -> None:
         self._working_account = None