~/.zshrc: Try out fzf for autocompletion and things

Not sure about the history search, but want to try it out.

.zshrc

@@ -67,6 +67,11 @@ bindkey $terminfo[khome] beginning-of-line
bindkey $terminfo[kdch1] delete-char
bindkey  history-incremental-search-backward
if [ -e /usr/share/fzf/completion.zsh ]; then
	source /usr/share/fzf/completion.zsh
	source /usr/share/fzf/key-bindings.zsh
fi
source ~/.env
source ~/.aliases