Sort Custom Filters

(cherry picked from commit e4b5d559df2d5f3d55e16aae5922509e84f31e64)

frontend/src/Components/Filter/CustomFilters/CustomFiltersModalContent.js

@@ -29,7 +29,9 @@ function CustomFiltersModalContent(props) {
 
       <ModalBody>
         {
-          customFilters.map((customFilter) => {
+          customFilters
+            .sort((a, b) => a.label.localeCompare(b.label))
+            .map((customFilter) => {
               return (
                 <CustomFilter
                   key={customFilter.id}

frontend/src/Components/Menu/FilterMenuContent.js

@@ -39,7 +39,15 @@ class FilterMenuContent extends Component {
         }
 
         {
-          customFilters.map((filter) => {
+          customFilters.length > 0 ?
+            <MenuItemSeparator /> :
+            null
+        }
+
+        {
+          customFilters
+            .sort((a, b) => a.label.localeCompare(b.label))
+            .map((filter) => {
               return (
                 <FilterMenuItem
                   key={filter.id}