Fix Arch lint job failure from unterminated conditional in install-arch.sh

[Copilot]

The Arch Linux — Dependency & Lint Check workflow was failing on bash -n dots-extra/install-arch.sh due to an unmatched if block, reported as unexpected EOF. This PR restores valid shell control flow in the installer’s config-copy section.

• Root cause

  • dots-extra/install-arch.sh had a partial hyprlock.conf copy branch missing its closing fi, leaving the script syntactically invalid.

• Change made

  • Reintroduced the full if / else / fi block for copying hyprlock.conf into ~/.config/hypr/.
  • Updated the nearby comment to accurately state both hypridle and hyprlock configs are handled.

• Script section corrected

  if cp -n "$REPO_DIR/src/config/hyprlock.conf" "$HOME/.config/hypr/" 2>/dev/null; then
      log_ok "hyprlock.conf → $HOME/.config/hypr/"
  else
      log_info "hyprlock.conf already exists — not overwritten"
  fi

[Brainitech]

Merge to dev Branch