add new lesson mode and started code refraction

client/stylelint.config.js

@@ -2,16 +2,16 @@
 export default {
   extends: [
     'stylelint-config-standard-scss',
-    'stylelint-config-recommended-vue'
+    'stylelint-config-recommended-vue',
   ],
   ignoreFiles: [
     '**/node_modules/**',
     '**/dist/**',
-    '**/android/**'
+    '**/android/**',
   ],
   rules: {
     'at-rule-no-unknown': null,
     'scss/at-rule-no-unknown': true,
     'no-empty-source': null,
-  }
+  },
 };