added missing space in tmux statusline

tmux.conf

@@ -31,8 +31,8 @@ bind Escape copy-mode
 set -s escape-time 50
 
 # switch windows
-bind -r C-j previous-window
+bind -r j previous-window
-bind -r C-k next-window
+bind -r k next-window
 
 # splitting
 unbind %
@@ -43,10 +43,10 @@ bind -n C-h run "(tmux display-message -p '#{pane_title}' | grep -iq vim && tmux
 bind -n C-j run "(tmux display-message -p '#{pane_title}' | grep -iq vim && tmux send-keys C-j) || tmux select-pane -D"
 bind -n C-k run "(tmux display-message -p '#{pane_title}' | grep -iq vim && tmux send-keys C-k) || tmux select-pane -U"
 bind -n C-l run "(tmux display-message -p '#{pane_title}' | grep -iq vim && tmux send-keys C-l) || tmux select-pane -R"
-bind -r j resize-pane -D 2
+bind -r C-Down resize-pane -D 2
-bind -r k resize-pane -U 2
+bind -r C-Up resize-pane -U 2
-bind -r h resize-pane -L 2
+bind -r C-Left resize-pane -L 2
-bind -r l resize-pane -R 2
+bind -r C-Right resize-pane -R 2
 bind-key b command-prompt -p "create pane from:"  "join-pane -s ':%%'"
 bind-key v command-prompt -p "send pane to:"  "join-pane -t ':%%'"