docs: replace PHPDoc mixed in view table

[ddevsr]

Description
See #6310

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[kenjis]

Thank you!

[kenjis]

This might be outside the scope of the PR, but what does this comment say?

CodeIgniter4/system/View/Table.php

Line 190 in f0cee63

* Can be passed as an array or discreet params

Just a copy and paste mistake?
"Can be passed as an array or discreet params" is also found in setHeading() and setFooting().

[ddevsr]

This might be outside the scope of the PR, but what does this comment say?

CodeIgniter4/system/View/Table.php

Line 190 in f0cee63

* Can be passed as an array or discreet params

Based variable property type on $emptyCells

CodeIgniter4/system/View/Table.php

Lines 72 to 77 in f0cee63

	/**
	* Contents of empty cells
	*
	* @var string
	*/
	public $emptyCells = '';

In TableTest all setEmpty function using string. I think better remove comment Can be passed as an array or discreet params in setEmpty

[MGatner]

💪