added unit.vw

[cybertheory]

for responsive sizing

Description

Type of Change

• [] ❌ Breaking change
• [x] ✨ New feature or improvement
• [] 🛠️ Bug fix
• [] 🧹 Code refactor
• [ ] 📝 Documentation
• [ ] 🗑️ Chore

Ready Checklist

• [x] I've read the Contribution Guide.
• [x] In case this PR changes one of the core packages, I've modified the respective CHANGELOG.md file using the semantic_changelog format.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] I added myself to the AUTHORS file (optional, if you want to).

If you need help, consider asking for advice on the #contribute channel on Discord.

[docs-page[bot]]

To view this pull requests documentation preview, visit the following URL:

docs.page/schultek/jaspr~155

Documentation is deployed and generated using docs.page.

[github-actions[bot]]

Package Version Report

The following packages have been updated: jaspr : 0.9.3 -> 0.10.0 jaspr_builder : 0.9.3 -> 0.10.0 jaspr_cli : 0.9.3 -> 0.10.0 jaspr_flutter_embed : 0.1.4 -> 0.1.5 jaspr_riverpod : 0.3.8 -> 0.3.9 jaspr_router : 0.3.0 -> 0.3.1 jaspr_test : 0.9.3 -> 0.10.0

[codecov[bot]]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

:exclamation: No coverage uploaded for pull request base (main@33110d5). Click here to learn what that means.

:exclamation: Current head 015b3e6 differs from pull request most recent head ccb77db. Consider uploading reports for the commit ccb77db to get more accurate results

Files	Patch %	Lines
...kages/jaspr/lib/src/ui/styles/properties/unit.dart	77.77%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #155 +/- ## ======================================= Coverage ? 61.11% ======================================= Files ? 98 Lines ? 4068 Branches ? 0 ======================================= Hits ? 2486 Misses ? 1582 Partials ? 0 ```

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