WIP: Modernize project and add Vite, Vitest & Eslint 🚧

[javve]

Long time no see! I began a project four years ago to refactor the code base, the purpose was to decouple the different modules a bit and allow unit tests for each part of List.js. Unfortunately I lost momentum and the project died.

Now I've had some extra time on my hands and took the opportunity to continue the work, and as part of that I've also taken the time to modernize the project a bit. I've thrown out Webpack, Jest & Babel to replace with Vite, Vitest & Eslint.

• Webpack ➡️ Vite
• Jest ➡️ Viteest
• Circle CI ➡️ GitHub Action
• 🆕 Eslint
• ❎ Bower

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 95.47872% with 17 lines in your changes missing coverage. Please review.

Project coverage is 88.94%. Comparing base (d32c85d) to head (a00d8e4).
Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
src/index.js	79.71%	14 Missing ⚠️
src/sort-buttons.js	97.61%	2 Missing ⚠️
src/templater.js	99.05%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #785      +/-   ##
==========================================
- Coverage   93.54%   88.94%   -4.61%     
==========================================
  Files          19       21       +2     
  Lines         837     1438     +601     
  Branches      199        0     -199     
==========================================
+ Hits          783     1279     +496     
- Misses         38      159     +121     
+ Partials       16        0      -16     

Flag	Coverage Δ
unittests	88.94% <95.47%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/fuzzy-search.js	100.00% <100.00%> (ø)
src/item.js	100.00% <100.00%> (ø)
src/parse.js	100.00% <100.00%> (ø)
src/search.js	100.00% <100.00%> (+3.52%)	⬆️
src/sort.js	100.00% <100.00%> (+3.07%)	⬆️
src/utils/classes.js	61.48% <ø> (+2.65%)	⬆️
src/utils/value-names.js	100.00% <100.00%> (ø)
src/templater.js	99.23% <99.05%> (+0.07%)	⬆️
src/sort-buttons.js	97.61% <97.61%> (ø)
src/index.js	76.28% <79.71%> (-22.51%)	⬇️

... and 11 files with indirect coverage changes

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