feat(waybar): update module spacing

* Add spacing to memory, cpu, audio, keyboard, and battery modules to separate the modules from each other a little more and get a more consistent look on the bar.
* Update the icons for memory, cpu (so the icon looks more like what it actually is)

.config/waybar/config

@@ -87,7 +87,7 @@
     
     "memory": {
         "interval": 5,
-        "format": " {}%", // Icon: memory
+        "format": "{:>3}% ",
         "on-click": "footclient -T waybar_htop -e htop", 
         "states": {
             "warning": 70,
@@ -97,7 +97,7 @@
 
     "cpu": {
         "interval": 5,
-        "format": "  {usage}% ({load})", // Icon: microchip
+        "format": "{usage:>3}% ",
         "states": {
             "warning": 70,
             "critical": 90,