- Linting (ESLint): Fix for stricter linting checks

- npm: Update devDeps and core-js copy

package.json

@@ -85,23 +85,23 @@
     "axe-core": "^3.3.1",
     "axe-testcafe": "^3.0.0",
     "babel-plugin-transform-object-rest-spread": "^7.0.0-beta.3",
-    "core-js-bundle": "^3.1.4",
-    "eslint": "6.1.0",
-    "eslint-config-ash-nazg": "8.5.2",
-    "eslint-config-standard": "13.0.1",
+    "core-js-bundle": "^3.2.1",
+    "eslint": "6.2.0",
+    "eslint-config-ash-nazg": "8.7.0",
+    "eslint-config-standard": "14.0.0",
     "eslint-plugin-array-func": "^3.1.3",
     "eslint-plugin-compat": "^3.3.0",
     "eslint-plugin-eslint-comments": "^3.1.2",
     "eslint-plugin-html": "^6.0.0",
     "eslint-plugin-import": "2.18.2",
-    "eslint-plugin-jsdoc": "^15.8.0",
+    "eslint-plugin-jsdoc": "^15.8.1",
     "eslint-plugin-markdown": "^1.0.0",
     "eslint-plugin-no-use-extend-native": "^0.4.1",
     "eslint-plugin-node": "9.1.0",
     "eslint-plugin-promise": "4.2.1",
     "eslint-plugin-qunit": "^4.0.0",
     "eslint-plugin-sonarjs": "^0.4.0",
-    "eslint-plugin-standard": "4.0.0",
+    "eslint-plugin-standard": "4.0.1",
     "eslint-plugin-testcafe": "^0.2.1",
     "eslint-plugin-unicorn": "^10.0.0",
     "imageoptim-cli": "^2.3.9",
@@ -117,13 +117,13 @@
     "regenerator-runtime": "^0.13.3",
     "remark-cli": "^7.0.0",
     "remark-lint-ordered-list-marker-value": "^1.0.3",
-    "rollup": "1.19.2",
+    "rollup": "1.19.4",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-re": "^1.0.7",
     "rollup-plugin-terser": "^5.1.1",
-    "sinon": "^7.3.2",
+    "sinon": "^7.4.1",
     "sinon-test": "^2.4.0",
     "stackblur-canvas": "^2.2.0",
-    "testcafe": "^1.3.3"
+    "testcafe": "^1.4.1"
   }
 }