[5.3] Apply mail cloaking in finder results

[SniperSister]

Pull Request for Issue #43749

Summary of Changes

Mail addresses in results in com_finder are currently uncloaked, as they are not passed through the OnContentPrepare event.

This PR adds an event handler for the finder results to the cloaking plugin and ensures that the content plugin group is loaded by com_finder.

Testing Instructions

• Create an article with a searchword, following a a mail address
• Search for the word in com_finder
• Inspect the result using your browser dev tools

Actual result BEFORE applying this Pull Request

Mail address in uncloaked.

Expected result AFTER applying this Pull Request

Mail address is cloaked.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• [ x] No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• [x ] No documentation changes for manual.joomla.org needed

[brianteeman]

Is it a good idea to import ALL content plugins. Shouldn't it just be the mailcloak plugin

[SniperSister]

Fair comment. Updated as suggested.

[ChristineWk]

After this: Inspect the result using your browser dev tools I got this result:

[ChristineWk]

I have tested this item ✅ successfully on 1c40e08

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[fgsw]

I have tested this item ✅ successfully on 1c40e08

Test by using Prebuilt package.

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[alikon]

RTC

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[SniperSister]

The last commit includes more plugins and is irrelevant for the test results, It would suggest to restore the 2 successful tests.