feat(plugins): convert slick.draggablegrouping to vanillaJS (#744)

- fix ESLint for Cypress
- also remove jQuery from package.json list of dependencies

.eslintrc

@@ -1,11 +1,16 @@
 {
-    "extends": "eslint:recommended",
+    "extends": [
+        "eslint:recommended",
+        "plugin:cypress/recommended"
+    ],
     "env": {
         "browser": true,
-        "es2015": true
+        "es2015": true,
+        "node": true
     },
     "globals": {
-        "Slick": true
+        "Slick": true,
+        "Sortable": true
     },
     "rules": {
         "no-prototype-builtins": [0]

examples/example-external-headersort.html

@@ -49,7 +49,8 @@ <h2>Demonstrates:</h2>
     {id: "effort-driven", name: "Effort Driven", sortable: false, width: 80, minWidth: 20, maxWidth: 80, cssClass: "cell-effort-driven", field: "effortDriven"}
   ];
 
-    function setupColumnReorder(grid, $headers, headerColumnWidthDiff, setColumns, setupColumnResize, columns, getColumnIndex, uid, trigger) {
+    function setupColumnReorder(grid, headers, headerColumnWidthDiff, setColumns, setupColumnResize, columns, getColumnIndex, uid, trigger) {
+      var $headers = $(headers);
       $headers.filter(":ui-sortable").sortable("destroy");
       $headers.sortable({
         //cancel: '#' + uid + 'title',

package.json

@@ -34,7 +34,6 @@
     "release": "node ./scripts/release.js --create-release github"
   },
   "dependencies": {
-    "jquery": ">=3.0.0",
     "sortablejs": "^1.15.0"
   },
   "devDependencies": {
@@ -48,6 +47,7 @@
     "cypress": "^9.7.0",
     "dotenv": "^16.0.2",
     "eslint": "^8.22.0",
+    "eslint-plugin-cypress": "^2.13.3",
     "fs-extra": "^10.1.0",
     "git-url-parse": "^13.1.0",
     "http-server": "^13.0.2",