Fix gravatar message for default state

[bonham000]

This PR:

• Fix gravatar message for default state where avatar is the default icon from initial user signup.
• Fix bug updating last active challenge IDs on user login.
• Debug some issues with Cypress tests and update Cypress.

Note:

The last Cypress test run in CI failed because of the workspace challenge tests again:

cypress_1            |   1) Workspace Challenges
cypress_1            |        The workspace supports TypeScript challenges and they can be solved:
cypress_1            |      AssertionError: Timed out retrying: Expected to find element: `#gs-card`, but never found it.
cypress_1            |       at Context.eval (http://client:3000/__cypress/tests?p=src/integration/workspace.spec.ts:228:28)
cypress_1            | 
cypress_1            |   2) Workspace Challenges
cypress_1            |        The workspace supports Async/Await challenges and they can be solved:
cypress_1            |      AssertionError: Timed out retrying: Expected to find element: `#gs-card`, but never found it.
cypress_1            |       at Context.eval (http://client:3000/__cypress/tests?p=src/integration/workspace.spec.ts:273:28)

I'm not sure what to do about this, other than disabling the tests. It's possible upgrading Cypress in this PR may help. I ran the tests again locally now a few times and these tests passed consistently. These tests just continue to intermittently fail in CI runs... 😞

[iansinnott]

• Debug some issues with Cypress tests and update Cypress.

🔥