Add fetch and install scripts

- Add fetch script which fetches the current config that is used by the
  system into the git repo
- Add install script which copies the config in the repo into the config
  folder for the user
- Add waybar as config

waybar/scripts/refresh.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Check if waybar is running
+if pgrep -x "waybar" > /dev/null; then
+    # If running, kill the waybar process
+    pkill -x "waybar"
+    waybar &
+else
+    # If not running, start waybar
+    waybar &
+fi
+
+