- client: Submit setFiltersConfig action on if the values are changed: Merge pull request #637 in DNS/adguard-home from fix/1749 to master

Close #1749

Squashed commit of the following:

commit aaf4ba86429670ea8b0001325562c4a173be5b4a
Author: ArtemBaskal <a.baskal@adguard.com>
Date:   Fri May 29 13:29:44 2020 +0300

    - client: Submit setFiltersConfig action on if the values are changed

client/src/helpers/helpers.js

@@ -482,6 +482,19 @@ export const getCurrentFilter = (url, filters) => {
     };
 };
 
+/**
+ * @param {object} initialValues
+ * @param {object} values
+ * @returns {object} Returns different values of objects
+ */
+export const getObjDiff = (initialValues, values) => Object.entries(values)
+    .reduce((acc, [key, value]) => {
+        if (value !== initialValues[key]) {
+            acc[key] = value;
+        }
+        return acc;
+    }, {});
+
 /**
  * @param number Number to format
  * @returns string Returns a string with a language-sensitive representation of this number