Editing Toolkit: Update to v2.20

[andrewserong]

Changes proposed in this Pull Request

• Bump version of Editing Toolkit plugin to 2.20

Editing toolkit changes included in this release

• remove negative left margin (Legacy fse - fix close button margin #50250) @Addison-Stavlo
• Launch: Fix logic to compute redirectToWpcomPath origin (Launch: Fix logic to compute redirectToWpcomPath origin #50241) @ciampo
• Tidy up after recent Focused Launch checkout changes (Tidy up after recent Focused Launch checkout changes #50182) @ciampo
• i18n: Add missing translators comments in ETK components (i18n: Add missing translators comments in ETK components #50190) @yuliyan
• Disable premium block patterns feature due to performance issues (Disable premium block patterns feature due to performance concerns #50111) @andrewserong
• Patterns: Allow custom viewport width when registering patterns (Patterns: Use custom viewport width where available when registering patterns #49906) @andrewserong
• Remove Anchor-specific welcome guide (Welcome Guide: Remove podcasting-specific guide #50161) @allilevine
• Launch: Cleanup calypsoifyGutenberg (Launch: Cleanup calypsoifyGutenberg. #49067) @yansern @ciampo
• Focused Launch: Only launch site if checkout is complete (Focused Launch: Only launch site if checkout is complete #48452) @StefanNieuwenhuis @razvanpapadopol
• chore(@automattic/page-template-modal): Use the same dependencies than ETK (chore(@automattic/page-template-modal): Use the same dependencies than ETK #50114) @scinos @roo2
• Update Newspack Blocks to v1.21.0 (Update Newspack Blocks to v1.21.0 #50154) @dkoo
• Focused Launch - Summary View: Fix incorrect HE support link (Focused Launch - Summary View: Fix incorrect HE support link #50115) @StefanNieuwenhuis
• Patterns: Reveal the Featured pattern category and make it the first in the list (Patterns: Reveal the Featured pattern category, and make it the first in the list #49907) @andrewserong
• Move page template modal into its own package (move page template modal into its own package #49661) @roo2

Other changes included from the imported @automattic packages and their imports

• Page layout picker: Fix broken web fonts in page layout picker large preview (Page layout picker: Fix broken web fonts in page layout picker large preview #50253)
• Billing: Hide disallowed payment methods when changing payment method (Billing: Hide disallowed payment methods when changing payment method #49959) @sirbrillig (Does this change affect the ETK release? I don't think so, but we might want to double check)
• Focused Launch: Fix billing period tracking in summary (Focused Launch: Fix billing period tracking in summary #49930) @ciampo
• Focused Launch: Fix domain picker item flex spacing (Focused Launch: Fix domain picker item flex spacing #49883) @ciampo
• plans-grid: Fix translators comment format (plans-grid: Fix translators comment format #50191) @yuliyan

Testing instructions

1. Load the diff on your sandbox (D57237-code) and confirm that the above changes work correctly
2. When a change has been tested to work correctly, please mark it as checked in the list above
3. Test that the new version of the plugin doesn't break Atomic sites by following the instructions in the "Atomic Testing" section at PCYsg-ly5-p2.
   • Tested on atomic with and without Gutenberg plugin active

[matticbot]

Test live: https://calypso.live/?branch=update/bump-etk-plugin-version-to-2-20

[matticbot]

Caution: This PR affects files in the Editing Toolkit Plugin on WordPress.com
Please ensure your changes work on WordPress.com before merging.

D57237-code has been created so you can easily test it on your sandbox. See this FieldGuide page about developing the Editing Toolkit Plugin for more info: PCYsg-ly5-p2

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.

[creativecoder]

I verified both of the following for Simple and Atomic sites

• Update Newspack Blocks to v1.21.0 (Update Newspack Blocks to v1.21.0 #50154)
• Remove Anchor-specific welcome guide (Welcome Guide: Remove podcasting-specific guide #50161)

[StefanNieuwenhuis]

Focused Launch - Summary View: Fix incorrect HE support link (#50115) - @StefanNieuwenhuis

Tested and works as expected 👍

[ciampo]

• Rebased on top of trunk to include latest changes
• Added /packages related changes to the PR description

[ciampo]

• i18n: Add missing translators comments in ETK components #50190 and plans-grid: Fix translators comment format #50191 don't need to be tested in the front end — Having the Check code style for branches (Calypso) CI task completing successfully should be enough
• chore(@automattic/page-template-modal): Use the same dependencies than ETK #50114 tested by making sure that the dist files produced by ETK have not changed compared to trunk
• tested Tidy up after recent Focused Launch checkout changes #50182, Launch: Cleanup calypsoifyGutenberg. #49067, Focused Launch: Fix billing period tracking in summary #49930 & Focused Launch: Fix domain picker item flex spacing #49883 on simple sites

[StefanNieuwenhuis]

Focused Launch: Only launch site if checkout is complete (#48452) @StefanNieuwenhuis @razvanpapadopol

Tested and the changes look good. It works as expected.

[StefanNieuwenhuis]

Move page template modal into its own package (#49661) @roo2

I've tested this against production to see if there are any changes and haven't seen any changes. Since this is about moving code to a package, I assume that this is expected, but since there weren't any testing instructions in the PR, I cannot be 100% sure.

[ciampo]

All changes included so far have been tested on simple sites.

On hold as we investigate errors on Atomic sites, potentially related to wpcom-block-editor plugin (which would be required by this version of ETK). See p1613660495322200-slack-C02DQP0FP

[ciampo]

On hold as we investigate errors on Atomic sites

This should be fixed after merging #50237.

Rebased to include latest changes and tested #50241 on simple sites.

[andrewserong]

Rebased to include a fix for the page layout picker, I believe this release is now ready to land.

[razvanpapadopol]

Smoke tested atomic with and without Gutenberg plugin active after WBE fix from #50237
Looks ready to 🚢

[ciampo]

Rebased in order to include #50250

[ciampo]

We weren't able to test for #50250 because we didn't know how to follow the instructions, although by looking at the code changes, they are only CSS removals — should be pretty safe (cc @Addison-Stavlo)

[ciampo]

Cleanup patches:

• remove 2.16: D57332-code
• remove 2.17: D57334-code