Fix IE11 compatibility

Signed-off-by: Christoph Wurst <[email protected]>

Author: ChristophWurst

Diff for: .babelrc.js

@@ -0,0 +1,12 @@
+module.exports = {
+    presets: [
+        [
+            '@babel/preset-env',
+            {
+                targets: {
+                    browsers: ['last 2 versions', 'ie >= 11']
+                }
+            }
+        ]
+    ]
+}

Diff for: package-lock.json

@@ -32,9 +32,5 @@
     "webpack": "^4.28.4",
     "webpack-cli": "^3.2.1",
     "webpack-merge": "^4.2.1"
-  },
-  "browserslist": [
-    "last 2 versions",
-    "ie >= 11"
-  ]
+  }
 }