terser: specify 2 passes as it offers slightly better compression

Author: XhmikosR

package.json

@@ -39,8 +39,8 @@
     "js-compile-plugins-coverage": "cross-env NODE_ENV=test node build/build-plugins.js",
     "js-lint": "eslint --cache --cache-location .cache/.eslintcache --report-unused-disable-directives .",
     "js-minify": "npm-run-all --aggregate-output --parallel js-minify-*",
-    "js-minify-standalone": "terser --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.js.map,includeSources,url=bootstrap.min.js.map\" --output dist/js/bootstrap.min.js dist/js/bootstrap.js",
-    "js-minify-bundle": "terser --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.bundle.js.map,includeSources,url=bootstrap.bundle.min.js.map\" --output dist/js/bootstrap.bundle.min.js dist/js/bootstrap.bundle.js",
+    "js-minify-standalone": "terser --compress passes=2,typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.js.map,includeSources,url=bootstrap.min.js.map\" --output dist/js/bootstrap.min.js dist/js/bootstrap.js",
+    "js-minify-bundle": "terser --compress passes=2,typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.bundle.js.map,includeSources,url=bootstrap.bundle.min.js.map\" --output dist/js/bootstrap.bundle.min.js dist/js/bootstrap.bundle.js",
     "js-test": "npm-run-all --aggregate-output --parallel js-test-karma* --serial js-test-integration",
     "js-test-karma": "karma start js/tests/karma.conf.js",
     "js-test-karma-old": "cross-env USE_OLD_JQUERY=true npm run js-test-karma",