Mark translations that are only for screen readers

[igorschoester]

Context

• Improve translator context by adding a Hidden accessibility text. comment whenever translations are only used in either screen reader texts or aria labels. To be clear: this means searching for the same translation in the same text domain, if it is used in any other context than screen reader/aria label that means no comment should be there. This is due comments appearing above all the references.

Summary

This PR can be summarized in the following changelog entry:

• Adds mark above translations that are used only for screen readers.

Relevant technical choices:

• It would be nice to have a search yourself, to see if I missed any instances?
  • Note that I intentionally ignored where the variable was used in more than just the screen reader, or in apps, or deprecated. Or when the same translation was used in a non screen reader capacity elsewhere.

Test instructions

Test instructions for the acceptance test before the PR gets merged

This PR can be acceptance tested by following these steps:

Relevant test scenarios

• Changes should be tested with the browser console open
• Changes should be tested on different posts/pages/taxonomies/custom post types/custom taxonomies
• Changes should be tested on different editors (Block/Classic/Elementor/other)
• Changes should be tested on different browsers
• Changes should be tested on multisite

Test instructions for QA when the code is in the RC

• QA should use the same steps as above.

QA can test this PR by following these steps:

• Not testable, since its only code comments.

Impact check

This PR affects the following parts of the plugin, which may require extra testing:

UI changes

• This PR changes the UI in the plugin. I have added the 'UI change' label to this PR.

Documentation

• I have written documentation for this change.

Quality assurance

• I have tested this code to the best of my abilities
• I have added unittests to verify the code works as intended

Innovation

• No innovation project is applicable for this PR.
• This PR falls under an innovation project. I have attached the innovation label and noted the work hours.

Fixes Yoast/wordpress-seo#19854

[coveralls]

Pull Request Test Coverage Report for Build 6340263514

• 0 of 3 (0.0%) changed or added relevant lines in 1 file are covered.
• 6 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.2%) to 45.357%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/admin/views/options.php	0	3	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/admin/views/options.php	6	0.0%

Totals
Change from base Build 6319529401:	-0.2%
Covered Lines:	1055
Relevant Lines:	2326

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💛 - Coveralls

[vraja-pro]

CR ✅