fix(vitest): afterEach not called early when sequence.hooks is set

[AriPerkkio]

Issue:

• Related to [Tracking Issue]: Vitest → Chromatic Integration v0 #295
• Ref. docs: clarify order of before* hooks cleanup functions vitest-dev/vitest#10230

What Changed

In Material UI they have setup file that cleans DOM in afterEach. They also use sequence.hooks: "list", which made their setup file run before ours. This caused automatic snapshots to be empty.

Now we'll look for sequence.hooks config when deciding whether setup file should be in the start of end. Also noticed Vitest bug (or feature) where callbacks returned from beforeEach(() => () => void) were always run last. Now using explicit afterEach to work-around that.

How to test

Added test cases that fail without the fix. Revert the changes and see tests fail.

[changeset-bot]

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Latest commit: 7a90b6c

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[codecov]

Codecov Report

❌ Patch coverage is 84.61538% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.48%. Comparing base (89f7beb) to head (7a90b6c).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/vitest/src/browser/setupFile.ts	77.77%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #327      +/-   ##
==========================================
+ Coverage   89.96%   91.48%   +1.52%     
==========================================
  Files          22       22              
  Lines         598      611      +13     
  Branches      109      114       +5     
==========================================
+ Hits          538      559      +21     
+ Misses         56       49       -7     
+ Partials        4        3       -1     

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