Fix return value of wrapAll() when count() is 0

[jakejackson1]

When $this->matches->count() is 0 in QueryMutators::wrapAll() it returns void, but the method is type hinted to return DOMQuery (the current object).

Pull Request type

Please check the type of change your PR introduces:

• [X] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no API changes)
• [ ] Build-related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

-

-

Does this introduce a breaking change?

• [ ] Yes
• [ ] No

Other information

TODO: Unit Test, manual testing, ensure no breaking changes

[codecov[bot]]

Codecov Report

Merging #44 (c6699f9) into main (4280f56) will not change coverage. The diff coverage is 0.00%.

@@            Coverage Diff            @@
##               main      #44   +/-   ##
=========================================
  Coverage     88.40%   88.40%           
  Complexity     1349     1349           
=========================================
  Files            26       26           
  Lines          3088     3088           
=========================================
  Hits           2730     2730           
  Misses          358      358           

Impacted Files	Coverage Δ
src/Helpers/QueryMutators.php	95.34% <0.00%> (ø)

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