[release] v0.17.4

[Michael Grosser]

• Update changelog
• Change Hugo min version in theme.toml
• Change version
  • /VERSION
  • .seed-config.yaml
  • /package.json
  • /exampleSite/package.json
  • /exampleSite/config.toml
  • /exampleSite/config-dev.toml
  • /exampleSite/content/docs/installation/content.md
  • layouts/partials/head.html
• Create stable release branch vX.X (gets minor, non breaking updates)

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• Migrate various test/production sites to release branch
• tag alpha, beta releases, if necessary

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• Fix/document remaining bugs/PRs
• Test sites again
• Rinse and repeat

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• Update docs to latest release branch
• Create final tag
• Create Github release
• Release notes
• Migrate starter repo
  • Change version
    • /VERSION
    • .seed-config.yaml
    • /config.toml
  • Update submodule
  • Update config.toml (with version and content changes)
  • Change Hugo version in netlify.toml
  • Create tag (same as Syna version)

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• Test latest release with themes.gohugo.io script
• Merge latest syna demo/page into about.okkur.org/syna/ (see syna/README for specifics)

[Michael Grosser]

Moved the release to the next cycle. A few bigger delays got added.

[Michael Grosser]

Docs will follow separately.