Twenty Nineteen: Text color setting in pullquote block not applied

[ianbelanger]

Text color settings in the pullquote block are not being applied.

To replicate:

1. With Twenty Nineteen active, create a new post in the block editor
2. Add a Pullquote block
3. Add some text and try adjusting the color settings

[ianbelanger]

Related #47019 - same issue was reported in Twenty Sixteen

[ianbelanger]

Fixes pullquote color options

[ianbelanger]

Includes style.css changes, first npm run build had line ending issues

[ianbelanger]

Reviewing for commit.

[ianbelanger]

In 47339:

Bundled Themes: Twenty Nineteen text color setting in pullquote block not applied.

Fixes the pullquote color setting by adding classes that are more specific to the color options.

Props ianbelanger.
Fixes #49410.

[ianbelanger]

Reopening for backport.

[audrasjb]

Moving 5.3.3 Bundled Themes tickets back to milestone 5.4 as RC1 is approaching.

[SergeyBiryukov]

In 47536:

Twenty Nineteen: Update style-rtl.css after [47339].

Props ianbelanger.
See #49410.

[SergeyBiryukov]

In 47538:

Twenty Nineteen: Update style-editor.css and style-rtl.css after running the build task.

Follow-up to [47327], [47339].

Props ianbelanger.
Reviewed by desrosj, SergeyBiryukov.
Merges [47536] and [47537] to the 5.4 branch.
See #48526, #49410, #49743.