update tmux config to unify. Add Readme for tmux incl keybind cheatsheet

programs/tmux/default.nix

@@ -1,12 +1,92 @@
 { pkgs, ... }:
 
 let
-  tmuxConfig = builtins.readFile ./tmux.conf;
+  tmuxConfig = ''
+    # disable mouse
+    set -g mouse off
+
+    # increase repeat time for repeatable commands
+    set -g repeat-time 1000
+
+    # highlight window when it has new activity
+    setw -g monitor-activity on
+    set -g visual-activity on
+
+    # re-number windows when one is closed
+    set -g renumber-windows on
+
+    ###########################
+    #  Key Bindings
+    ###########################
+
+    # Copy vim style
+    # create 'v' alias for selecting text
+    bind Escape copy-mode
+    bind C-[ copy-mode
+    bind -T copy-mode-vi 'v' send -X begin-selection
+    # copy with 'enter' or 'y' and send to mac os clipboard
+    unbind -T copy-mode-vi Enter
+    bind -T copy-mode-vi Enter send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
+    bind -T copy-mode-vi 'y' send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
+    # paste
+    bind p paste-buffer
+
+    # panes: window splitting
+    unbind %
+    bind "'" split-window -h
+    unbind '"'
+    bind - split-window -v
+
+    # Switch panes with hjkl
+    bind h select-pane -L
+    bind j select-pane -D
+    bind k select-pane -U
+    bind l select-pane -R
+
+    # Quick window selection
+    bind -r C-h select-window -t :-
+    bind -r C-l select-window -t :+
+
+    # resize panes
+    bind -r H resize-pane -L 10
+    bind -r J resize-pane -D 10
+    bind -r K resize-pane -U 10
+    bind -r L resize-pane -R 10
+
+    # Quickly switch panes
+    unbind ^J
+    bind ^J select-pane -t :.+
+
+    ############################
+    ## Status Bar
+    ############################
+
+    # enable UTF-8 support in status bar
+    set -gq status-utf8 on
+
+    # center the status bar
+    set -g status-justify centre
+
+    # show session, window, pane in left status bar
+    set -g status-left-length 40
+    set -g status-left '#[fg=green] #S #[fg=yellow]#I/#[fg=cyan]#P '
+
+    # update status bar info
+    set -g status-interval 60
+
+    set -g status-right " #(tms sessions)"
+    bind -r '(' switch-client -p\; refresh-client -S
+    bind -r ')' switch-client -n\; refresh-client -S
+    bind C-o display-popup -E "tms"
+
+    set -g default-command /etc/profiles/per-user/salar/bin/fish
+  '';
 in
 {
   programs.tmux = {
     enable = true;
     baseIndex = 1;
+    resizeAmount = 10;
     escapeTime = 10;
     historyLimit = 10000;
     keyMode = "vi";
@@ -30,11 +110,6 @@ in
 
           # No extra spaces between icons
           set -g @tokyo-night-tmux_window_tidy_icons 0
-
-          set -g status-right " #(tms sessions)"
-          bind -r '(' switch-client -p\; refresh-client -S
-          bind -r ')' switch-client -n\; refresh-client -S
-          bind C-o display-popup -E "tms"
         '';
       }
       {