Add broadcast of strides and kernel_dilation to nn.ConvTranspose

[IvyZX]

Fixes #3729 and make the API of nn.Conv and nn.ConvTranspose more consistent.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 59.00%. Comparing base (f5c48fe) to head (fdbc640).
Report is 2 commits behind head on main.

Files	Patch %	Lines
flax/linen/linear.py	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3731      +/-   ##
==========================================
- Coverage   59.09%   59.00%   -0.09%     
==========================================
  Files         103      103              
  Lines       12456    12422      -34     
==========================================
- Hits         7361     7330      -31     
+ Misses       5095     5092       -3     

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