make all same-module imports relative, the rest absolute

This makes sorting more consitent.

pkgs/clan-cli/clan_cli/backups/create.py

@@ -2,13 +2,13 @@ import argparse
 import json
 import logging
 
-from ..completions import (
+from clan_cli.completions import (
     add_dynamic_completer,
     complete_backup_providers_for_machine,
     complete_machines,
 )
-from ..errors import ClanError
-from ..machines.machines import Machine
+from clan_cli.errors import ClanError
+from clan_cli.machines.machines import Machine
 
 log = logging.getLogger(__name__)