clear password from TUI input after use (#717)

* clear password from input after use and fix docstring typo

* move password clear to after page transition

Author: knQzx

datashuttle/tui/screens/setup_ssh.py

@@ -190,6 +190,7 @@ def use_password_to_setup_ssh_key_pairs(self) -> None:
             )
             self.failed_password_attempts += 1
 
+        self.query_one("#setup_ssh_password_input").value = ""
         self.query_one("#messagebox_message_label").update(message)
 
     def try_setup_rclone_encryption(self):

datashuttle/utils/ssh.py

@@ -249,7 +249,7 @@ def save_hostkey_locally(key, central_host_id, hostkeys_path) -> None:
 
 
 def get_remote_server_key(central_host_id: str):
-    """Get the remove server host key for validation before connection.
+    """Get the remote server host key for validation before connection.
 
     Parameters
     ----------