refactor: cleanup and remove unused stuff

src/modules/helpers/interval.js

@@ -1,4 +1,8 @@
 // based on https://stackoverflow.com/a/47009962
+// it has been brought to my attention (many) times that this is horribly broken if the time
+// on the "Change every" setting is longer than 1 minute. I wasn't going to wait days to see
+// if the function worked, so i just assumed it did. i apologise. this function will be 
+// replaced entirely in the future probably
 export default function interval(callback, interval, name) {
   const key = name + 'interval';
   const ms = localStorage.getItem(key);