Added tmux and alacritty

.config/tmux/tmux.conf

@@ -0,0 +1,23 @@
+# global options
+set -sg terminal-overrides ",*:RGB"
+set -g mouse on
+set -g prefix C-a
+
+# unbind all
+unbind-key -a
+
+# prefix using Ctrl-a
+bind C-a send-prefix
+
+# detach tmux using q
+bind q detach
+
+# split panes using s and d
+bind d split-window -h
+bind s split-window -v
+
+# switch panes using Alt-arrow without prefix
+bind -n M-Left select-pane -L
+bind -n M-Right select-pane -R
+bind -n M-Up select-pane -U
+bind -n M-Down select-pane -D