Lock the screen when Yubikey hardware is plugged out

[vunnyso]

• Add udev rule for Yubikey hardware such that once Yubikey is plugged out of system, screen should lock automatically.
• Starting swayidle lock in labwc autostart.

Description of changes

Checklist for things done

• [x] Summary of the proposed changes in the PR description
• [x] More detailed description in the commit message(s)
• [x] Commits are squashed into relevant entities - avoid a lot of minimal dev time commits in the PR
• [x] Contribution guidelines followed
• [ ] Ghaf documentation updated with the commit - https://tiiuae.github.io/ghaf/
• [ ] PR linked to architecture documentation and requirement(s) (ticket id)
• [x] Test procedure described (or includes tests). Select one or more:
  • [x] Tested on Lenovo X1 x86_64
  • [ ] Tested on Jetson Orin NX or AGX aarch64
  • [ ] Tested on Polarfire riscv64
• [ ] Author has run nix flake check --accept-flake-config and it passes
• [x] All automatic Github Action checks pass - see actions
• [x] Author has added reviewers and removed PR draft status

Testing

Prerequisite Yubikey hardware, more details here

Steps: 1) Plugin the Yubikey Hardware 2) Plugout the Yubikey Hardware 3) After plugout screen locker will appear automatically.

[milva-unikie]

Tested on Lenovo-X1

Everything is ok!

• Plugging the Yubikey in and then taking it out locks the laptop
• Laptop can be opened with Yubikey, password or with fingerprint if one is enrolled
• Test-automation passes
• Performance ok