adapt to NixOS config

tmux/.tmux.conf

@@ -1,16 +1,24 @@
+new-session
+setw -g aggressive-resize 1
 set -g base-index 1
-set -g default-terminal 'screen-256color'
+setw -g pane-base-index 1
+setw -g clock-mode-style 24
+
+set -g default-terminal 'xterm-256color'
 set -s escape-time 0
 set -g history-limit 10000
+
 set -g mouse on
-set -g pane-active-border-style fg=cyan
 set -g renumber-windows on
 set -g set-titles on
 set -g status-interval 10
 set -g status-right "#(whoami)@#(hostname) | #(cut -f1 -d \" \" < /proc/loadavg) | %H:%M "
+set -g pane-active-border-style fg=cyan
 set -g status-style fg=black,bg=cyan
-setw -g mode-keys vi
-setw -g pane-base-index 1
+set -ga terminal-overrides ",xterm-256color:Tc"
+
+set -g mode-keys vi
+set -g status-keys vi
 
 unbind C-b
 set -g prefix C-x
@@ -26,7 +34,7 @@ bind j select-pane -D
 bind k select-pane -U
 bind l select-pane -R
 
-bind -r C-h resize-pane -L 5
-bind -r C-j resize-pane -D 5
-bind -r C-k resize-pane -U 5
-bind -r C-l resize-pane -R 5
+bind -r H resize-pane -L 5
+bind -r J resize-pane -D 5
+bind -r K resize-pane -U 5
+bind -r L resize-pane -R 5