fix: fixed numberFormatter bug

https://github.com/PanJiaChen/vue-element-admin/issues/2568

src/filters/index.js

@@ -45,7 +45,7 @@ export function numberFormatter(num, digits) {
   ]
   for (let i = 0; i < si.length; i++) {
     if (num >= si[i].value) {
-      return (num / si[i].value + 0.1).toFixed(digits).replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol
+      return (num / si[i].value).toFixed(digits).replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol
     }
   }
   return num.toString()