Automatic update for anaconda-39.19-1.eln126.

Changelog

* Tue Jun 13 2023 Packit <hello@packit.dev> - 39.19-1
- webui: remove redundant dashes from README (kkoukiou)
- docs: remove confusion for which toolbox to use for webui development
  (kkoukiou)
- webui: enable linter for webui CI runs (kkoukiou)
- Check minimal LUKS passphrase length in FIPS mode for Kickstart (vslavik)
- GUI: Require 8 chars of LUKS passwords in FIPS mode (vslavik)
- Use Firefox in kiosk mode for running the Web UI locally (mkolman)
- Do not print error on inst.ks=cdrom|hd (#2077045) (jkonecny)
- storage: fix resolving btrfs subvolumes from fstab (#2186158) (rvykydal)
- storage: improve btrfs devices removing in custom partitioning (#2186158)
  (rvykydal)
- Don't override blivet's preferred disk label type by default (awilliam)
- Update translations from Weblate