Move neofetch and btop to desktop+ximper tag. Add cascadia-code font, extension-manager, switcheroo-control to default packages.

russian lang is default now!

- regular.mk: add btrfs support for jeos-full (Closes: 46212)
- grub: add missing info messages about bootloading of kernel, initrd and other
- stage2: save cpe from /etc/os-release to .disk/cpe (Closes: 46271)
- reports: DEBUG must be enabled, CHECK must be disabled
- reports.mk: allow read access to the report to everyone
- plymouth: add kernel cmdline parameter 'loglevel=3' after 'quiet'
- base+regular: add apt-https
- plymouth: add feature plymouth to initrd.mk for rootfs
- Add latests commits from zerg@ and cas@