refactor: add / use named exports for plugins + makers + publishers

[MarshallOfSound]

This is a small usability thing, importing a named import is a lot easier than a default export and this enforces consistent naming so that we can more easily read code supplied in bug reports.

[codecov]

Codecov Report

Merging #2996 (2fb2045) into main (247bcc8) will increase coverage by 0.81%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2996      +/-   ##
==========================================
+ Coverage   73.38%   74.19%   +0.81%     
==========================================
  Files          67       67              
  Lines        2168     2178      +10     
  Branches      436      436              
==========================================
+ Hits         1591     1616      +25     
+ Misses        365      355      -10     
+ Partials      212      207       -5     

Impacted Files	Coverage Δ
packages/api/core/src/api/make.ts	79.20% <100.00%> (+5.94%)	⬆️
packages/maker/appx/src/MakerAppX.ts	62.06% <100.00%> (+3.44%)	⬆️
packages/maker/base/src/Maker.ts	70.58% <100.00%> (+0.89%)	⬆️
packages/maker/deb/src/MakerDeb.ts	95.45% <100.00%> (+4.54%)	⬆️
packages/maker/dmg/src/MakerDMG.ts	100.00% <100.00%> (+5.00%)	⬆️
packages/maker/flatpak/src/MakerFlatpak.ts	79.16% <100.00%> (+0.90%)	⬆️
packages/maker/pkg/src/MakerPKG.ts	93.75% <100.00%> (+0.41%)	⬆️
packages/maker/rpm/src/MakerRpm.ts	95.45% <100.00%> (+4.54%)	⬆️
packages/maker/snap/src/MakerSnap.ts	100.00% <100.00%> (+6.66%)	⬆️
packages/maker/squirrel/src/MakerSquirrel.ts	77.27% <100.00%> (+1.08%)	⬆️
... and 14 more

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