Add spec files for the components

 - AppHeader.js
 - AppNavigation.js

Signed-off-by: Sukanya Pandey <sukapan1@in.ibm.com>
Change-Id: I55bbd16349dcf134b68fe33ba7cc26f29a98cfc7
diff --git a/package.json b/package.json
index 6ecc41c..4e23a0f 100644
--- a/package.json
+++ b/package.json
@@ -20,8 +20,6 @@
     "core-js": "3.3.2",
     "js-cookie": "^2.2.1",
     "lodash": "4.17.15",
-    "sinon": "9.0.1",
-    "sinon-chai": "3.5.0",
     "vue": "2.6.11",
     "vue-i18n": "8.15.3",
     "vue-router": "3.1.3",
@@ -51,6 +49,8 @@
     "node-sass": "4.13.1",
     "prettier": "1.18.2",
     "sass-loader": "8.0.0",
+    "sinon": "9.0.1",
+    "sinon-chai": "3.5.0",
     "vue-cli-plugin-i18n": "0.6.1",
     "vue-template-compiler": "2.6.11",
     "vuepress": "^1.2.0"