The WordOccurrences component should use `_n()` for proper translation

[afercia]

Explanation

The WordOccurrences component uses a translatable string that doesn't take into account singular / plural forms:

sprintf( __( "%d occurrences", "yoast-components" ), occurrence )

Instead, it should use _n() to provide singular / plural strings, taking into account whether there's just 1 occurrence or more occurrences:

sprintf(
	/* translators: %d: Prominent words occurrences. */
	_n( "%d occurrence", "%d occurrences", occurrence, "yoast-components" ),
	occurrence
)

To reproduce

• go to the standalone app demo > WordOccurrences tab
• change one of the words occurrences to 1
• inspect the source in your dev tools
• see the string is incorrect: 1 occurrences

Technical decisions

Feedback?

[afercia]

Patched at https://github.com/Yoast/javascript/pull/353