test: Extend getNextInputElement tests for several elements per cell

[TomasEng]

Description

When adding the text resource picker to the input table, the table will have cells with several interactive elements (one input field and two toggle buttons). In this case, when the user navigates using the arrow keys, it is the text field (or the combobox when in search mode) that should receive focus. This may be generalized to the first interactive element in the cell. Therefore, I have added tests that verify that this is the case. There is no need to change the actual function since it turns out that the new tests run green without modifying anything.

Note

It may be a good idea to evaluate this behaviour with some user testing. By implementing this, we are implying that arrow keys should be used to always navigate from one cell to another, and not inside the cell itself. This is also the most straightforward and simple rule to support. Implementing other kinds of behaviour might be complicated because of design system limitations, element positioning and so on.

Related Issue(s)

• Implement text reference handling in code list table #13739

Verification

• Your code builds clean without any errors or warnings

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.36%. Comparing base (cd8560b) to head (fccc454).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #14160   +/-   ##
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  Coverage   95.36%   95.36%           
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  Files        1797     1797           
  Lines       23367    23367           
  Branches     2702     2702           
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  Hits        22284    22284           
  Misses        836      836           
  Partials      247      247           

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