Update eslint config

Author: tshemsedinov

.eslintrc.json

@@ -8,6 +8,9 @@
   "parserOptions": {
     "ecmaVersion": 2020
   },
+  "globals": {
+    "BigInt": true
+  },
   "rules": {
     "indent": [
       "error",
@@ -25,7 +28,6 @@
       "error",
       "always"
     ],
-    "no-console": "off",
     "no-loop-func": [
       "error"
     ],
@@ -211,7 +213,7 @@
     ],
     "arrow-parens": [
       "error",
-      "as-needed"
+      "always"
     ],
     "arrow-body-style": [
       "error",