Add clipboardy devDependency for e2e tests

Signed-off-by: Olga Bulat <obulat@gmail.com>

Author: obulat

package.json

@@ -46,7 +46,8 @@
     "stylus": "^0.54.7",
     "stylus-loader": "^3.0.2",
     "vue-cli-plugin-i18n": "^0.6.0",
-    "vue-template-compiler": "^2.6.10"
+    "vue-template-compiler": "^2.6.10",
+    "clipboardy": "^2.1.0"
   },
     "jest": {
         "moduleFileExtensions": [