Reduce code duplication on createPet function

[Technickel-Dev]

While working on #255 I noticed that it was super annoying to have to paste the same arguments everywhere. This push reduces some of that code duplication by extracting out the pet creation arguments, making a more readable and maintainable function

[codecov-commenter]

Codecov Report

Merging #270 (ee9f0ba) into master (53fbfcd) will increase coverage by 0.10%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master    #270      +/-   ##
=========================================
+ Coverage    8.25%   8.35%   +0.10%     
=========================================
  Files           3       3              
  Lines         642     634       -8     
  Branches       99      90       -9     
=========================================
  Hits           53      53              
+ Misses        589     581       -8     

Impacted Files	Coverage Δ
src/panel/pets.ts	7.17% <0.00%> (+0.22%)	⬆️

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[tonybaloney]

Excellent contribution. I didn't know you could unpack in Typescript like this. Much easier to read.