Convert e2e tests to the POM

[etanb]

We recently implemented a Page Object Model for our e2e tests, but only newer tests are taking advantage of this and now we're maintaining 2 code paths for older tests and newer tests.

Note for refinement

• Doing this after we have finished our existing new E2E test creation?
• Do we want to separate this task out into several smaller tickets?

Acceptance Criteria:

• [ ] Update older tests to utilize the POM
• [ ] Create a base suite of tests that all e2e tests use (ie, footer, title etc)
• [x] Put spec/page tests in their respective folders, ie sending-data and receiving data should be in a folder called getting-started just like the hierarchy is on the website