Block patterns: Fix translatable strings (take 2)

[SergeyBiryukov]

Background: #50842

Reported by @tobifjellner:

I got this screenshot from @nabilmoqbel
Seems to be more hardcoded stuff in sample content.

Not sure this can be addressed in time for 5.5, so setting the milestone to 5.5.1 for now.

[nabilmoqbel]

Read now button

[justinahinon]

Just look and yes, the strings are hardcoded. Working on a patch for the blocks in the screenshots and also looking at investigating others block patterns.

[justinahinon]

Make string translatables in block patterns

[SergeyBiryukov]

#50904 was marked as a duplicate.

[audrasjb]

Editor: Transform block patterns hardcoded strings into translatable strings

[audrasjb]

Thanks @justinahinon, the patch looks good to me but it wasn't generated against wordpress-develop, so it's pretty hard to apply to WP Core dev environment. I added a new patch based on what you did and I checked all the patterns: you identified all the patterns with issues regarding i18n, thanks.

Marking this for commit action.

[SergeyBiryukov]

This also needs to be fixed upstream in Gutenberg. See #50842 for example, which was a backport of ​https://github.com/WordPress/gutenberg/pull/24317 for ​https://github.com/WordPress/gutenberg/issues/24316.

[justinahinon]

Replying to SergeyBiryukov:

This also needs to be fixed upstream in Gutenberg.

Opened an issue ​https://github.com/WordPress/gutenberg/issues/24646.

Here's the PR: ​https://github.com/WordPress/gutenberg/pull/24647.

[audrasjb]

Hi,
Note: The PR has been merged, so this patch can be committed as well.

[SergeyBiryukov]

In 48859:

Editor: Make some hardcoded strings in block patterns translatable.

Follow-up to [48726].

Props justinahinon, audrasjb, nabilmoqbel, tobifjellner, yoavf, ramiy.
Fixes #50845.

[SergeyBiryukov]

In 48860:

Editor: Make some hardcoded strings in block patterns translatable.

Follow-up to [48726].

Props justinahinon, audrasjb, nabilmoqbel, tobifjellner, yoavf, ramiy.
Merges [48859] to the 5.5 branch.
Fixes #50845.