SSR: Move anything not needed by the masterbar back to client

[ehg]

This moves unused dependencies (on the server), back to client. It's the first part of #1551, in a later PR, we'll remove shared altogether.

Note that i18n-utils and its dependencies remain in shared, as it's used by both the client and server for user bootstrapping.

To test:

• make run
• Check there are no build errors
• Check Calypso generally works (the e2e tests are nice for this)
• Check the logged-out masterbar on /design works, and is SSRed

[ockham]

I aged for 'shared/components', 'shared/dispatcher', 'shared/lib', and 'shared/my-sites', and updated a number of occurrences (just docs).

[ockham]

Testing:

• Check there are no build errors

• Check Calypso generally works (the e2e tests are nice for this):
  Got 5 errors here, all of which were due to timeouts:

  • Error: Timed out waiting for first-name to be clearable
  • Error: Could not locate the .secure-payment-form element. Check that is is displayed.
  • Error: Could not locate the post preview component. Check that it is displayed (3 times)

  FWIW, trying master gave me 7 errors on, also all timeouts. I was able to manually invoke the secure payments form as well as the preview component for a post, a page, and a theme, so I guess the e2e timeouts were spurious. I'm not sure about the clearable first-name error; FWIW, I'm able to load a domain registration form.

• Check the logged-out masterbar on /design works, and is SSRed

👍 if e2e tests pass for you

[ehg]

Thanks! :)

Got 5 errors here, all of which were due to timeouts

Yeah, I think that's expected. The upgrades/signup tests are kind of flaky, and I think the editor tests were just updated to take into account the new layout.