Update the Roadmap page for 2022

[SergeyBiryukov]

Previously: #4065, #4847, #5647.

As ​suggested by @JeffPaul after the WordPress 6.0 release:

On ​https://wordpress.org/about/roadmap/ I would recommend removing:

For more information on the planned release schedule, please read the Make WordPress Core post about the ​tentative release calendar for 2020-2021.

Potentially worth linking to one (more, none) of the following three posts on that page perhaps:

1. ​Proposal: 2022 Major Release Timing
2. ​Our Three Big Ideas for 2022!
3. ​Big Picture Goals 2022

[SergeyBiryukov]

In 11893:

WordPress.org Main Theme: Update Roadmap page content for 2022.

Props JeffPaul, SergeyBiryukov.
See #6332.

[SergeyBiryukov]

Keeping the ticket open for now just in case any further updates are needed.

[tobifjellner]

[11893] contained a spurious space at the end of string:
"For the Community</strong> – Share our knowledge and resources in a way that inspires and motivates our users to action. "

[SergeyBiryukov]

In 11897:

WordPress.org Main Theme: Roadmap: Remove extra space at the end of a string.

Follow-up to [11893].

Props tobifjellner.
See #6332.

[Presskopp]

I think the word 'Improve' has to be lower case in:

Update Polyglots tools to Improve the translation experience.

[SergeyBiryukov]

In 11898:

WordPress.org Main Theme: Roadmap: Switch a word to lower case.

Follow-up to [11893], [11897].

Props Presskopp.
See #6332.

[SergeyBiryukov]

In 11899:

WordPress.org Main Theme: Roadmap: Use esc_html_e() for strings that don't have any HTML in them.

Follow-up to [11893], [11897], [11898].

See #6332.