[polybar] Add throttle settings

Should be easier on my battery

polybar/config.ini

@@ -466,6 +466,17 @@ interval = 600
 label-font = 6
 
 [settings]
+; The throttle settings lets the eventloop swallow up til X events
+; if they happen within Y millisecond after first event was received.
+; This is done to prevent flood of update event.
+;
+; For example if 5 modules emit an update event at the same time, we really
+; just care about the last one. But if we wait too long for events to swallow
+; the bar would appear sluggish so we continue if timeout
+; expires or limit is reached.
+throttle-output = 5
+throttle-output-for = 10
+
 ; Reload upon receiving XCB_RANDR_SCREEN_CHANGE_NOTIFY events
 screenchange-reload = false