tmux: Do not show panes when switching sessions

Seeing panes while switching is not helpful enough with our naming
scheme for panes. Just show sessions and use exact option with fzf
to switch quickly.

tmux/.tmux.conf

@@ -101,10 +101,10 @@ bind -T copy-mode-vi r send-keys -X rectangle-toggle
 # Save scrollback buffer to a file
 bind S command-prompt -p 'Save history to filename:' -I '/tmp/tmux.history' 'capture-pane -S - -E -; save-buffer %1 ; delete-buffer'
 
-# Session and Pane selector
-bind T display-popup -E "tmux list-windows -a -F '#{session_name}:#{window_index} - #{window_name}' \
+# Session selector
+bind T display-popup -E "tmux list-sessions -F '#{session_name}' \
 	| grep -v \"^$(tmux display-message -p '#S')\$\" \
-	| fzf --reverse \
+	| fzf --reverse --exact \
 	| sed -E 's/\s-.*$//' \
 	| xargs tmux switch-client -t"