Add system upgrade, Docker, bpytop, and bash completion

- Add dnf upgrade at start for latest packages/kernel
- Install real Docker CE from official repository
- Install bpytop via Python 3.13
- Add bash-completion package and zsh compatibility
- Add user to docker group for permission

dotfiles/.zshrc

@@ -129,6 +129,10 @@ alias ska="tmux kill-session -a"
 
 export PATH="$HOME/.local/bin:$PATH"
 
+# Enable bash completion compatibility in zsh
+autoload -U +X bashcompinit && bashcompinit
+autoload -U +X compinit && compinit
+
 # To customize prompt, run `p10k configure` or edit ~/.p10k.zsh.
 [[ ! -f ~/.p10k.zsh ]] || source ~/.p10k.zsh