added zen mode plugin for neovim, order sessions alphabetically in tmux

.config/tmux/tmux.conf

@@ -16,6 +16,9 @@ bind-key -T copy-mode-vi v send-keys -X begin-selection
 # Use y to yank current selection
 bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel
 
+# open alphabetically sorted session list 
+bind s choose-tree -Zs -O name
+
 bind h select-pane -L
 bind j select-pane -D
 bind k select-pane -U