build: use babel build-in polyfills

Author: mydearxym

.babelrc

@@ -1,21 +1,22 @@
 {
-  "presets": [
-    ["next/babel"]
-  ],
+  "presets": [["next/babel"]],
   "env": {
     "development": {
       "plugins": ["inline-dotenv"]
     },
     "production": {
       "presets": [
-        ["next/babel", {
-          "preset-env": {
-            "targets": {
-              "ie": "10"
-            },
-            "debug": true
+        [
+          "next/babel",
+          {
+            "preset-env": {
+              "useBuiltIns": "usage",
+              "corejs": "3.1.4",
+              "targets": "> 0.25%, not dead",
+              "debug": false
+            }
           }
-        }]
+        ]
       ]
     },
     "test": {

next.config.js

@@ -47,21 +47,6 @@ const nextConfig = {
       )
     }
 
-    // IE 11 polyfills
-    const originalEntry = config.entry
-    config.entry = async () => {
-      const entries = await originalEntry()
-
-      if (
-        entries['main.js'] &&
-        !entries['main.js'].includes('./utils/polyfills')
-      ) {
-        entries['main.js'].unshift('./utils/polyfills')
-      }
-
-      return entries
-    }
-
     return config
   },
 }

package-docker.json

@@ -31,7 +31,7 @@
     "chalk": "^2.4.1",
     "compatible-debug": "^1.0.0",
     "cookie-parser": "^1.4.4",
-    "core-js": "3.0.1",
+    "core-js": "3.1.4",
     "draft-js": "^0.10.5",
     "draft-js-linkify-plugin": "^2.0.1",
     "draft-js-mention-plugin": "3.1.3",