[4.3] Template style assigned text plurals

[brianteeman]

Summary of Changes

Use plural language strings

Testing Instructions

Create a new template style and assign it to ONE page
Create a new template style and assign it to TWO pages

Actual result BEFORE applying this Pull Request

Expected result AFTER applying this Pull Request

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[sandewt]

I have tested this item ✅ successfully on fbf5941

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[ChristineWk]

I have tested this item ✅ successfully on fbf5941

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[alikon]

RTC

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[obuisard]

Thank you Brian @brianteeman