added browserslist-config-nk

updated eslint nad prettier configs

Author: nk-o

.browserslistrc

@@ -1,11 +1 @@
-# https://github.com/browserslist/browserslist#readme
-
->= 0.5%
-last 2 major versions
-not dead
-Chrome >= 60
-Firefox >= 60
-Firefox ESR
-iOS >= 12
-Safari >= 12
-not Explorer <= 11
+extends browserslist-config-nk

.eslintrc

@@ -1,6 +1,5 @@
-
 {
-    "extends": [
-        "eslint-config-nk"
-    ]
+  "extends": [
+    "eslint-config-nk"
+  ]
 }