Update devDependencies and gems. (#24876)

Gemfile.lock

@@ -28,7 +28,7 @@ GEM
       nokogiri (~> 1.6)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
-    kramdown (1.15.0)
+    kramdown (1.16.1)
     liquid (4.0.0)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)

package.json

@@ -93,7 +93,7 @@
     "bundlesize": "^0.15.3",
     "clean-css-cli": "^4.1.10",
     "cross-env": "^5.1.1",
-    "eslint": "^4.11.0",
+    "eslint": "^4.12.0",
     "eslint-plugin-compat": "^2.1.0",
     "glob": "^7.1.2",
     "htmllint-cli": "^0.0.6",
@@ -103,24 +103,24 @@
     "karma-detect-browsers": "^2.2.6",
     "karma-firefox-launcher": "^1.0.1",
     "karma-qunit": "^1.2.1",
-    "node-sass": "^4.7.1",
+    "node-sass": "^4.7.2",
     "nodemon": "^1.12.1",
     "npm-run-all": "^4.1.2",
     "popper.js": "^1.12.9",
     "postcss-cli": "^4.1.1",
     "qunitjs": "^2.4.1",
-    "rollup": "^0.51.8",
+    "rollup": "^0.52.0",
     "rollup-plugin-babel": "4.0.0-beta.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "shelljs": "^0.7.8",
     "shx": "^0.2.2",
     "sri-toolbox": "^0.2.0",
-    "stylelint": "^8.2.0",
+    "stylelint": "^8.3.1",
     "stylelint-config-recommended-scss": "^2.0.0",
-    "stylelint-config-standard": "^17.0.0",
+    "stylelint-config-standard": "^18.0.0",
     "stylelint-order": "^0.7.0",
     "stylelint-scss": "^2.1.0",
-    "uglify-js": "^3.1.10",
+    "uglify-js": "^3.2.0",
     "vnu-jar": "^17.11.1",
     "workbox-build": "^2.1.2"
   },

scss/mixins/_text-hide.scss

 // CSS image replacement
 @mixin text-hide() {
+  // stylelint-disable-next-line font-family-no-missing-generic-family-keyword
   font: 0/0 a;
   color: transparent;
   text-shadow: none;