Use more efficient field for board issues count

- Use issuesCount field over count field
- Use filter argument on lists field

app/assets/javascripts/boards/boards_util.js

@@ -40,7 +40,7 @@ export function formatListIssues(listIssues) {
   let listItemsCount;
 
   const listData = listIssues.nodes.reduce((map, list) => {
-    listItemsCount = list.issues.count;
+    listItemsCount = list.issuesCount;
     let sortedIssues = list.issues.edges.map((issueNode) => ({
       ...issueNode.node,
     }));

app/assets/javascripts/boards/graphql/lists_issues.query.graphql

@@ -12,11 +12,11 @@ query ListIssues(
 ) {
   group(fullPath: $fullPath) @include(if: $isGroup) {
     board(id: $boardId) {
-      lists(id: $id) {
+      lists(id: $id, issueFilters: $filters) {
         nodes {
           id
+          issuesCount
           issues(first: $first, filters: $filters, after: $after) {
-            count
             edges {
               node {
                 ...IssueNode
@@ -33,11 +33,11 @@ query ListIssues(
   }
   project(fullPath: $fullPath) @include(if: $isProject) {
     board(id: $boardId) {
-      lists(id: $id) {
+      lists(id: $id, issueFilters: $filters) {
         nodes {
           id
+          issuesCount
           issues(first: $first, filters: $filters, after: $after) {
-            count
             edges {
               node {
                 ...IssueNode