[4] Remove more deprecated code slated for removal in Joomla 4

[PhilETaylor]

Code review

Like the code said "As of 3.7.0, passing a null value for the first argument of %1$s() is deprecated and will not be supported in 4.0."

This PR cleans up and enforces this deprecation and fixes the docblocks

$jsSafe is slated as a bool, but the code has code to use it as an array, but its never used as an array by Joomla core so I have not type hinted it just yet, to allow 3PD calling it

Now if you call Text::script(); you will correctly get

Too few arguments to function Joomla\CMS\Language\Text::script(), 0 passed

[RickR2H]

Hey @PhilETaylor How can we test this? I know writing testing instructions isn't fun, but it will insure not so skilled people can also test and PR's get committed faster.

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[RickR2H]

I have tested this item ✅ successfully on 416d847

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[Quy]

I have tested this item ✅ successfully on 416d847

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[Quy]

RTC

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[brianteeman]

Could you please resolve the conflicts