Adjust to new ann interface

[benedict-96]

initialparameters and NeuralNetwork are now both called with arguments model, backend and T in that order.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 68.00%. Comparing base (f28974d) to head (a0c5b77).

Files	Patch %	Lines
src/layers/bias_layer.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #125      +/-   ##
==========================================
+ Coverage   67.42%   68.00%   +0.57%     
==========================================
  Files          97       96       -1     
  Lines        2490     2469      -21     
==========================================
  Hits         1679     1679              
+ Misses        811      790      -21     

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