Moved UI to client folder to fix HMR

app/imports/api/utility/numberToSignedString.js

@@ -0,0 +1,10 @@
+export default function numberToSignedString(number, spaced){
+  if (typeof number !== 'number') return number;
+  if (number === 0){
+    return spaced ? '+ 0' : '+0';
+  } else if (number > 0){
+    return spaced ? `+ ${number}` : `+${number}`;
+  } else {
+    return spaced ? `- ${Math.abs(number) || number}` : `${number}`;
+  }
+}