Update/mailbox link professional email without feature flags

[AllTerrainDeveloper]

Changes proposed in this Pull Request

Adds redirect url and email to the Professional Email embedded inbox. We are also removing TEMPORARILY two menu items, Calendar & Contact

Testing instructions

1. Have a Professional Email account
2. Access it through the Inbox menu in the calypso sidebar
3. It should prompt you to use your password (or log in if you are already authenticated)
4. The Look & Feel should have a black top bar with the WordPress logo (Similar to our dashboard)

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-36479

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-36479&env=jetpack

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

Sections (~298 bytes removed 📉 [gzipped])

name                      parsed_size           gzip_size
email                          -802 B  (-0.1%)     -111 B  (-0.1%)
checkout                       -130 B  (-0.0%)       -8 B  (-0.0%)
woocommerce-installation        -73 B  (-0.0%)      -28 B  (-0.0%)
woocommerce                     -73 B  (-0.0%)      -28 B  (-0.0%)
themes                          -73 B  (-0.0%)      -28 B  (-0.0%)
theme                           -73 B  (-0.0%)      -28 B  (-0.0%)
stats                           -73 B  (-0.0%)      -28 B  (-0.0%)
sites                           -73 B  (-0.0%)      -28 B  (-0.0%)
site-purchases                  -73 B  (-0.0%)      -29 B  (-0.0%)
settings-writing                -73 B  (-0.0%)      -29 B  (-0.0%)
settings-security               -73 B  (-0.0%)      -28 B  (-0.0%)
settings-performance            -73 B  (-0.0%)      -28 B  (-0.0%)
settings-jetpack                -73 B  (-0.0%)      -28 B  (-0.0%)
settings-discussion             -73 B  (-0.0%)      -28 B  (-0.0%)
settings                        -73 B  (-0.0%)      -29 B  (-0.0%)
scan                            -73 B  (-0.0%)      -28 B  (-0.0%)
purchases                       -73 B  (-0.0%)      -29 B  (-0.0%)
preview                         -73 B  (-0.0%)      -28 B  (-0.0%)
posts-custom                    -73 B  (-0.0%)      -28 B  (-0.0%)
posts                           -73 B  (-0.0%)      -27 B  (-0.0%)
plugins                         -73 B  (-0.0%)      -30 B  (-0.0%)
plans                           -73 B  (-0.0%)      -28 B  (-0.0%)
people                          -73 B  (-0.0%)      -28 B  (-0.0%)
pages                           -73 B  (-0.0%)      -28 B  (-0.0%)
migrate                         -73 B  (-0.0%)      -28 B  (-0.0%)
media                           -73 B  (-0.0%)      -31 B  (-0.0%)
marketplace                     -73 B  (-0.0%)      -30 B  (-0.0%)
marketing                       -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-social                  -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-search                  -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-connect                 -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-cloud-settings          -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-cloud-pricing           -73 B  (-0.0%)      -28 B  (-0.0%)
jetpack-cloud                   -73 B  (-0.0%)      -28 B  (-0.0%)
incoming-redirect               -73 B  (-0.3%)      -33 B  (-0.4%)
import                          -73 B  (-0.0%)      -28 B  (-0.0%)
hosting                         -73 B  (-0.0%)      -28 B  (-0.0%)
home                            -73 B  (-0.0%)      -28 B  (-0.0%)
gutenberg-editor                -73 B  (-0.0%)      -28 B  (-0.0%)
google-my-business              -73 B  (-0.0%)      -28 B  (-0.0%)
export                          -73 B  (-0.0%)      -28 B  (-0.0%)
earn                            -73 B  (-0.0%)      -28 B  (-0.0%)
domains                         -73 B  (-0.0%)      -29 B  (-0.0%)
customize                       -73 B  (-0.0%)      -28 B  (-0.0%)
concierge                       -73 B  (-0.0%)      -28 B  (-0.0%)
comments                        -73 B  (-0.0%)      -28 B  (-0.0%)
backup                          -73 B  (-0.0%)      -28 B  (-0.0%)
activity                        -73 B  (-0.0%)      -28 B  (-0.0%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Async-loaded Components (~31 bytes removed 📉 [gzipped])

name                                        parsed_size           gzip_size
async-load-calypso-my-sites-checkout-modal        -73 B  (-0.0%)      -31 B  (-0.0%)

React components that are loaded lazily, when a certain part of UI is displayed for the first time.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[stephanethomas]

There is one unit test that is failing, and I would suggest removing code that is no longer used (we don't know when Titan will support the links for the Calendar and Contacts apps - maybe it will never happen 🙂). But otherwise feel free to ship it 🚢🎉.