avoid ambiguity in Mul with ApplyLayout{typeof(\)}

[dlfivefifty]

No description provided.

[codecov]

Codecov Report

Merging #58 (94e590b) into master (9be6145) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #58      +/-   ##
==========================================
+ Coverage   44.59%   44.64%   +0.04%     
==========================================
  Files          19       19              
  Lines        1296     1297       +1     
==========================================
+ Hits          578      579       +1     
  Misses        718      718              

Impacted Files	Coverage Δ
src/matmul.jl	53.84% <100.00%> (+0.72%)	⬆️

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