[ticket/16414] update pkg.json & gulpjs deps

PHPBB3-16414

gulpfile.js

@@ -19,15 +19,10 @@ const build = {
 	css: './phpBB/styles/prosilver/theme/',
 };
 
-const AUTOPREFIXER_BROWSERS = [
-	'> 1%',
-	'last 2 versions'
-];
-
 gulp.task('css', () => {
 	const css = gulp
 	.src(build.css + '*.css')
-	.pipe(autoprefixer(AUTOPREFIXER_BROWSERS))
+	.pipe(autoprefixer())
 	.pipe(
 		postcss([
 			sorting(sortOrder)

package.json

@@ -8,18 +8,52 @@
 	},
 	"xo": {
 		"rules": {
-			"quote-props": [
+			"quotes": [
+				"error",
+				"single"
+			],
+			"comma-dangle": [
+				"error",
+				"always-multiline"
+			],
+			"max-params": [
+				"error",
+				6
+			],
+			"block-spacing": "error",
+			"array-bracket-spacing": [
 				"error",
 				"always"
+			],
+			"multiline-comment-style": "off",
+			"computed-property-spacing": "off",
+			"space-in-parens": "off",
+			"capitalized-comments": "off",
+			"object-curly-spacing": [
+				"error",
+				"always"
+			],
+			"no-lonely-if": "off"
+		},
+		"env": [
+			"es6",
+			"browser",
+			"node",
+			"jquery"
 		]
 	},
-		"env": {
+	"browserslist": [
-			"es6": true,
+		"> 1%",
-			"browser": true,
+		"not ie 11",
-			"node": true,
+		"not samsung 10.1",
-			"jquery": true
+		"not and_uc 12.12",
-		}
+		"not op_mini all",
-	},
+		"edge >= 18",
+		"ff >= 72",
+		"chrome >= 79",
+		"safari >= 13",
+		"ios >= 12.4"
+	],
 	"scripts": {
 		"test": "echo \"Error: no test specified\" && exit 1"
 	},