♻️ REFACTOR: verdi export/import -> verdi archive (#4710)

This commit deprecates `verdi export` and `verdi import` and combines them into `verdi archive`.

Author: chrisjsewell

aiida/cmdline/commands/__init__.py

@@ -16,7 +16,7 @@
 
 # Import to populate the `verdi` sub commands
 from aiida.cmdline.commands import (
-    cmd_calcjob, cmd_code, cmd_comment, cmd_completioncommand, cmd_computer, cmd_config, cmd_data, cmd_database,
-    cmd_daemon, cmd_devel, cmd_export, cmd_graph, cmd_group, cmd_help, cmd_import, cmd_node, cmd_plugin, cmd_process,
-    cmd_profile, cmd_rehash, cmd_restapi, cmd_run, cmd_setup, cmd_shell, cmd_status, cmd_user
+    cmd_archive, cmd_calcjob, cmd_code, cmd_comment, cmd_completioncommand, cmd_computer, cmd_config, cmd_data,
+    cmd_database, cmd_daemon, cmd_devel, cmd_export, cmd_graph, cmd_group, cmd_help, cmd_import, cmd_node, cmd_plugin,
+    cmd_process, cmd_profile, cmd_rehash, cmd_restapi, cmd_run, cmd_setup, cmd_shell, cmd_status, cmd_user
 )