Set symbol placement on field + support for symbol placement=hidden

[pelmered]

Fixes #44

[codecov]

Codecov Report

Attention: Patch coverage is 93.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 98.50%. Comparing base (eeb6198) to head (cb84835).

Files	Patch %	Lines
src/Forms/Components/MoneyInput.php	93.33%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #48      +/-   ##
============================================
- Coverage     98.95%   98.50%   -0.46%     
- Complexity       49       54       +5     
============================================
  Files            10       10              
  Lines           192      201       +9     
============================================
+ Hits            190      198       +8     
- Misses            2        3       +1     

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