feat: header improvements

[Virtute90]

Fixes #1099

PR Checklist

• My branch is up-to-date with the Upstream main branch.
• The unit tests pass locally with my changes (if applicable).
• I have added tests that prove my fix is effective or that my feature works (if applicable).
• I have added necessary documentation (if appropriate).

Short description of what this resolves:

Corretto stile per lo slim header e risolta problematica con versione mobile

[vercel]

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Name	Status	Preview	Updated (UTC)
design-react-kit	✅ Ready (Inspect)	Visit Preview	Dec 2, 2024 4:43pm

[codecov]

Codecov Report

Attention: Patch coverage is 99.21875% with 1 line in your changes missing coverage. Please review.

Project coverage is 97.32%. Comparing base (f062f26) to head (3e84524).

Files with missing lines	Patch %	Lines
stories/Components/Header/SlimHeader.stories.tsx	99.20%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1125   +/-   ##
=======================================
  Coverage   97.32%   97.32%           
=======================================
  Files         357      357           
  Lines       25303    25304    +1     
  Branches     1695     1696    +1     
=======================================
+ Hits        24627    24628    +1     
  Misses        674      674           
  Partials        2        2           

Flag	Coverage Δ
unittests	97.32% <99.21%> (+<0.01%)	⬆️

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[astagi]

Grazie @Virtute90 facciamo review ☺️