Doc-comment: Improve array @param

This uses syntax from https://phpstan.org/writing-php-code/phpdoc-types#general-arrays.

int[] means an array of ints with arbitrary keys (usually strings)
list<string> means an array of strings with sequential integer keys starting at 0
list<string>[] means an arbitrary array of string lists
list<string[]> means list of arbitrary string arrays
string[][] means two dimensional array with arbitrary keys in both dimensions
array was left in the comments for https://phpstan.org/writing-php-code/phpdoc-types#array-shapes

plugins/table-indexes-structure.php

@@ -9,7 +9,7 @@
 class AdminerTableIndexesStructure {
 
 	/** Print table structure in tabular format
-	* @Param array data about all indexes on a table
+	* @param array[] data about all indexes on a table
 	* @return bool
 	*/
 	function tableIndexesPrint($indexes) {