Advanced filter (#1905)

* advanced filter start

* advanced filters stage 2

* adv filters stage 3

* fixes

* add test

* eslint fixes

* age filter update

* some fixes and filters tests

* fixes 2

* add csv export

* fixes 3

* add env variable for adv filter

* fix tests

* edit env temporary

lib/getValuesArrayFromQuery.ts

@@ -0,0 +1,18 @@
+export default function getValuesArrayFromQuery(val: string | Array<string> | undefined) {
+  if (val === undefined) {
+    return;
+  }
+
+  const valArray = [];
+  if (typeof val === 'string') {
+    valArray.push(...val.split(','));
+  }
+  if (Array.isArray(val)) {
+    if (!val.length) {
+      return;
+    }
+    val.forEach(el => valArray.push(...el.split(',')));
+  }
+
+  return valArray;
+}