WebStorage Test: session storage

## Description

This test validates that store the data using Session Storage which means that even if you close the page, and re-open it, the data saved before should be lost.

1. Click the "Clear" button, refresh the page once and then check if the page shows "You have viewed this page 1 time(s)"
2. Close the page, re-open it and then check if the page still shows "You have viewed this page 1 time(s)"
3. If the above two steps are all true the test case pass, otherwise it fail.

## You have viewed this page an untold number of time(s).