GRM-11: i18n: translate all remaining user-facing strings

src/gitea_runner_manager/cli.py

@@ -339,7 +339,7 @@ def list_runners() -> None:
         click.echo(_("No runners registered. Use 'grm install' to add one."))
         return
 
-    click.echo(f"{'NAME':<20} {'HOST':<18} {'USER':<12} {'MODE':<8} {'STATUS'}")
+    click.echo(f"{_('NAME'):<20} {_('HOST'):<18} {_('USER'):<12} {_('MODE'):<8} {_('STATUS')}")
     click.echo("-" * 70)
     for r in runners:
         click.echo(f"{r['name']:<20} {r['host']:<18} {r['user']:<12} {r['mode']:<8} {r['status']}")