Improve rule documentaion and smell message of NamedArguments

[BraisGabin]

Improve rule documentaion to give context about why this issue could appear and improve the smell message to point exactly what's going on.

[codecov]

Codecov Report

Merging #4796 (1229796) into main (22bc63d) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main    #4796   +/-   ##
=========================================
  Coverage     84.70%   84.70%           
  Complexity     3426     3426           
=========================================
  Files           491      491           
  Lines         11253    11255    +2     
  Branches       2069     2069           
=========================================
+ Hits           9532     9534    +2     
  Misses          676      676           
  Partials       1045     1045           

Impacted Files	Coverage Δ
...turbosch/detekt/rules/complexity/NamedArguments.kt	83.33% <100.00%> (+1.19%)	⬆️

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