build: Update stylelint-config-wikimedia to 0.13.0

Change-Id: I08b554ccb17f94b9df1ff2d2d45a14f8f82b84c8

.stylelintrc.json

@@ -1,5 +1,8 @@
 {
-	"extends": "stylelint-config-wikimedia/grade-a",
+	"extends": [
+		"stylelint-config-wikimedia/support-modern",
+		"stylelint-config-wikimedia/mediawiki"
+	],
 	"rules": {
 		"selector-class-pattern": "^(ve|oo-ui)-",
 		"declaration-property-unit-disallowed-list": null

package.json

@@ -34,7 +34,7 @@
 		"grunt-cssjanus": "0.5.0",
 		"grunt-eslint": "24.0.0",
 		"grunt-karma": "4.0.2",
-		"grunt-stylelint": "0.17.0",
+		"grunt-stylelint": "0.18.0",
 		"grunt-svgmin": "6.0.1",
 		"grunt-tyops": "0.1.0",
 		"karma": "6.3.2",
@@ -45,6 +45,6 @@
 		"karma-qunit": "4.1.2",
 		"qunit": "2.18.2",
 		"stringify-object": "3.3.0",
-		"stylelint-config-wikimedia": "0.12.0"
+		"stylelint-config-wikimedia": "0.13.0"
 	}
 }

src/ce/styles/nodes/ve.ce.AlienNode.css

@@ -7,7 +7,6 @@
 .ve-ce-alienNode-highlights .ve-ce-focusableNode-highlight {
 	background-color: #95d14f;
 	background-image: repeating-linear-gradient( -45deg, #fff 0, #fff 5px, #95d14f 5px, #95d14f 10px );
-	/* stylelint-disable-next-line plugin/no-unsupported-browser-features */
 	background-size: 14px 14px;
 	/* stylelint-disable-next-line plugin/no-unsupported-browser-features */
 	cursor: not-allowed;