TT3 and TT4: make template heading text translatable

[sabernhardt]

Follow-up to #60298

Twenty Twenty-Three still has an untranslatable heading "Mindblown: a blog about philosophy." in home.html.

Twenty Twenty-Four has "Posts" in its index.html template.

[sabernhardt]

creating hidden templates for the headings so they can use PHP

[iflairwebtechnologies]

Fixed TT3 and TT4 template heading text translatable

[karmatosed]

I am going to pick the first patch as the second @iflairwebtechnologies seems to also have additional files in it. Thank you for both patches though. I am going to test and look to committing this.

[karmatosed]

For now, because this adds templates even though hidden, I think having more testing might be good so removing commit and adding testing. I will keep the milestone.

[poena]

Hi
I have tested the GitHub PR and the two patches.

I recommend merging https://core.trac.wordpress.org/attachment/ticket/61951/61591.diff
Because out of the three suggested changes, it is the most consistent with the spacing and naming. In this patch the pattern slug and pattern file name includes the word "hidden": hidden-posts-heading. This is consistent with the other hidden patterns in the themes.

The text displays correctly without issues in the Site Editor and on the front.
To test the index template in Twenty Twenty-Four, I first deleted the home template.

[peterwilsoncc]

Assigning this to @poena as I think it would be a good first commit

[poena]

In 59065:

Bundled Themes: Make text strings translatable.

This changeset updates Twenty Twenty-Three and Twenty Twenty-Four and replaces text strings in HTML files with patterns to make the strings translatable.

Follow-up to [58459].

Props sabernhardt, karmatosed, iflairwebtechnologies, poena.
Fixes #61951.