Hard deprecation of tidy_marginal_means()

[larmarange]

Fix #284

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes missing coverage. Please review.

Project coverage is 87.35%. Comparing base (076e70d) to head (5973668).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
R/marginal_tidiers.R	57.14%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #285      +/-   ##
==========================================
- Coverage   87.50%   87.35%   -0.15%     
==========================================
  Files          44       44              
  Lines        3168     3148      -20     
==========================================
- Hits         2772     2750      -22     
- Misses        396      398       +2     

Files with missing lines	Coverage Δ
R/custom_tidiers.R	83.06% <ø> (ø)
R/model_get_pairwise_contrasts.R	91.66% <ø> (ø)
R/tidy_add_pairwise_contrasts.R	85.00% <ø> (ø)
R/marginal_tidiers.R	92.40% <57.14%> (-0.83%)	⬇️