Add two eslint plugins (#24776)

Add these two plugins and autofix issues:

-
[eslint-plugin-no-use-extend-native](https://github.com/dustinspecker/eslint-plugin-no-use-extend-native)
-
[eslint-plugin-array-func](https://github.com/freaktechnik/eslint-plugin-array-func)

web_src/js/features/copycontent.js

@@ -36,7 +36,7 @@ export function initCopyContent() {
       }
     } else { // text, read from DOM
       const lineEls = document.querySelectorAll('.file-view .lines-code');
-      content = Array.from(lineEls).map((el) => el.textContent).join('');
+      content = Array.from(lineEls, (el) => el.textContent).join('');
     }
 
     // try copy original first, if that fails and it's an image, convert it to png

web_src/js/features/repo-projects.js

@@ -15,7 +15,7 @@ function moveIssue({item, from, to, oldIndex}) {
   updateIssueCount(to);
 
   const columnSorting = {
-    issues: [...columnCards].map((card, i) => ({
+    issues: Array.from(columnCards, (card, i) => ({
       issueID: parseInt($(card).attr('data-issue')),
       sorting: i
     }))

web_src/js/utils/match.js

@@ -3,7 +3,7 @@ import emojis from '../../../assets/emoji.json';
 const maxMatches = 6;
 
 function sortAndReduce(map) {
-  const sortedMap = new Map([...map.entries()].sort((a, b) => a[1] - b[1]));
+  const sortedMap = new Map(Array.from(map.entries()).sort((a, b) => a[1] - b[1]));
   return Array.from(sortedMap.keys()).slice(0, maxMatches);
 }