[4.4] PHP8.2 Add missing class properties to views

[wilsonge]

Summary of Changes

In several view classes we are missing defining properties of the class that we then use later on in the view causing us to have magic properties. This ensures that they are correctly set in the code base as explicit properties

Testing Instructions

Check tag list, categories, articles list and newsfeed list views and check that they continue to work as before with no changes

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

[chmst]

I have tested this item ✅ successfully on f818f17

code review

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[laoneo]

I have tested this item ✅ successfully on f818f17

Also code review

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[laoneo]

@wilsonge can you fix the code style errors?

[laoneo]

@wilsonge can you fix the code style issues here?

[alikon]

I have tested this item ✅ successfully on d3fb5cd

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[laoneo]

Thanks!