[5.2] Finder Router: filter out unnecessary query elements

[Hackwar]

Summary of Changes

When creating a Smart Search menu item with a filter, the ID of the filter is displayed in the URL after the search has been submitted. This PR refactors the router to remove the unnecessary parameter.

Testing Instructions

• Have something to search for in your Joomla installation, for example the testing sampledata.
• Create a filter for Smart Search with some stuff selected.
• Create a menu item for the Smart Search search view and select the filter in it.
• Go to the menu item in the frontend and search for something random.

Actual result BEFORE applying this Pull Request

The URL contains a query element like &f=2.

Expected result AFTER applying this Pull Request

The URL does not contain the &f= query element.

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

[fgsw]

I have tested this item ✅ successfully on cf51a65

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/44055.}

[fgsw]

I have not tested this item.

Saw to late the red marked information /Applications/MAMP/htdocs/components/com_finder/src/Service/Router.php on line 69 /index.php/en/search?f=1&q=joomla" method="get" role="search"> above the search module:

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/44055.}

[fgsw]

@Hackwar Same result /Applications/MAMP/htdocs/components/com_finder/src/Service/Router.php on line 69 /index.php/en/search?f=1&q=joomla" method="get" role="search">