Fix: Avoid re-render when user settings haven't changed for FilterPro…

…vider

The behavior of `useSelector` and `connect` is differently.
`useSelector` uses identity comparison `===` for detecting if the
returned object has changed and a re-render is necessary and `connect`
uses shallow comparison. See https://react-redux.js.org/api/hooks#equality-comparisons-and-updates
for all details.

Therefore to avoid re-renders in the FilterProvider we need to compare
the contents of returned array from the user settings selector via
`shallowEqual` because with every call a new array is created and the
identity changes.

src/web/entities/filterprovider.js

@@ -18,7 +18,7 @@
 
 import React, {useEffect, useState} from 'react';
 
-import {useSelector, useDispatch} from 'react-redux';
+import {useSelector, useDispatch, shallowEqual} from 'react-redux';
 
 import {ROWS_PER_PAGE_SETTING_ID} from 'gmp/commands/users';
 
@@ -84,7 +84,7 @@ const FilterProvider = ({
       userSettingDefaultSel.getValueByName('rowsperpage'),
       userSettingDefaultSel.getError(),
     ];
-  });
+  }, shallowEqual);
 
   useEffect(() => {
     if (!isDefined(rowsPerPage)) {