Unit test coverage

[keller-mark]

Fixes #145
Fixes #1599
Fixes #1498
Fixes #1559
Fixes #1512

Background

Change List

• Upgrade vitest
  • Use vitest-canvas-mock
    • Pin jest-canvas-mock version
  • Explicitly import describe, it, expect in unit tests
• Use vitest workspaces; run unit tests once at root of repo rather than independently per sub-package https://vitest.dev/guide/workspace.html
• Configure coverage reporting in vite.config.js
• Add github action to comment on PRs with any changes in coverage
• Upgrade pnpm setup github action (Note: not directly related to the addition of unit test coverage)
• Specify shell: bash to fix unit test execution on Windows in github actions
• Clean up test.sh script
• Clean up packages/vit-s/schemas JSON schema files that are no longer used
• Upgrade to PNPM v8 in README and github actions
  • Revert pnpm-lock lockfile version

Checklist

• Ensure PR works with all demos on the dev.vitessce.io homepage
• Open (draft) PR's into vitessce-python and vitessce-r if this is a release PR
• Documentation added or updated

[github-actions]

Size Change: -45 B (0%)

Total Size: 11.3 MB

ℹ️ View Unchanged

Filename	Size	Change
./packages/main/prod/dist/deflate-********.js	243 B	0 B
./packages/main/prod/dist/hglib-********.js	4.34 MB	0 B
./packages/main/prod/dist/index-********.js	6.87 MB	-45 B (0%)
./packages/main/prod/dist/index.min.js	590 B	0 B
./packages/main/prod/dist/jpeg-********.js	15.3 kB	0 B
./packages/main/prod/dist/lerc-********.js	47.2 kB	0 B
./packages/main/prod/dist/lzw-********.js	2.1 kB	0 B
./packages/main/prod/dist/packbits-********.js	576 B	0 B
./packages/main/prod/dist/pako.esm-********.js	68.6 kB	0 B
./packages/main/prod/dist/raw-********.js	168 B	0 B
./packages/main/prod/dist/webimage-********.js	872 B	0 B

_{compressed-size-action}

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	77.28%	8541 / 11051
🔵	Statements	77.28%	8541 / 11051
🔵	Functions	65.03%	253 / 389
🔵	Branches	78.75%	823 / 1045

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
packages/vit-s/src/state/hooks.js	59.31%	100%	29.72%	59.31%	53-63, 65-72, 74-86, 95-99, 116-122, 163-167, 200-225, 228-246, 254-255, 272-334, 349-353, 369-377, 380, 399-424, 433-434, 450-466, 482-503, 564-565, 574-575, 584-585, 594-595, 604-605, 614-620, 628-629

Generated in workflow #2866

[keller-mark]

Note: bundle size check will fail due to differing pnpm-lock files and pnpm versions on main vs. in this PR