new alacritty window is the copy of the old alacritty

[LoogCP]

I'm a new guy for i3, and I live your dotfiles very much, it's so beautiful. there are some questions I don't know how to solve them.
when I open the second alacritty window(the same for the third or more), it is the copy of the first alacritty. two windows(or more )will change synchronously, one change, all change.

[Diki Ananta]

Thanks. That's because I attached tmux session automatically in alacritty config alacritty.yml#L123.
I have fixed it in the next commit.