blm: convert to banner

[MylesBorins]

We originally discussed keeping the BLM landing page up for a week.
This is a suggested implementation for what we can replace it with.
It makes a new landing page /en/black-lives-matter/ that preserves
the entire original BLM landing site and adds a link to it using our
Security Release notification banner.

Two outstanding question.

1. Should we change the style of the banner to have a black background?
2. Should we wait until Monday to change it?

[addaleax]

1. Should we change the style of the banner to have a black background?

2. Should we wait until Monday to change it?

Yes and yes, imo

[WaleedAshraf]

Yes and yes, imo

[MylesBorins]

Updated colors. Before and after hover below

[gireeshpunathil]

+1 to landing anytime from now, including fast-tracking - aligning with the duration we discussed and decided, for the current banner.

[MylesBorins]

updated. The BLM banner is now a unique element and stylesheet. Took some liberties with the design

[joesepi]

LGTM Thanks!

[Jakub-Piskorz]

Please leave this message to US region only. We're not all Americans. People around the globe use Node and many of us are not involved in US politics and social problems.

[MylesBorins]

@Jakub-Piskorz the current implementation will have the banner on every version of the website.

[MylesBorins]

If there are no objections I'm going to land this in 2 hours

[bnb]

[gdelfino]

Would it be OK to also include a statement in support of free and fair elections? This is after all a human right (see article 21 of the Human Rights declaration). I am from a country devastated because of the lack of free and fair elections (Venezuela) and would love to extend this message of hope for the forgotten victims of the lack of this human right.