Code cleanup

[demis-palma]

The PHPdoc declares the variable as "double"
@param double $startTime
but the method initialises its default value with an "integer" instead
$startTime = 0

Summary of Changes

Changed the default value to type double

Testing Instructions

To be merged on review

[Quy]

Tested with 0 and 0.0 and the result is always 0. Thus, it doesn't make a difference. Close PR?

$startTime = 0;
echo (double) $startTime; 

[ghost]

closed for Reason stated above. Pull Request can always reopened if needed.

[HLeithner]

There is a difference, the var gets initialized as float if 0.0 so this pr is correct

[HLeithner]

The file moved to libraries/src/Profiler/Profiler.php in the meantime may @demis-palma could rebase it?

[joomla-cms-bot]

Set to "closed" on behalf of @Quy by The JTracker Application at issues.joomla.org/joomla-cms/15743

[Quy]

Closing in favor of PR #24971

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