fix(mix): docs call out MixStyler usage, however the lib doesnt expose it.

[leccles1]

Related issue

N/A

Description

Docs call out The Styler should extend MixStyler however it doesn't appear to be exposed via export in the Mix library. All current examples appear to be internal usages.

e.g

• https://github.com/btwld/mix/blob/main/packages/mix/lib/src/specs/box/box_style.dart

Changes

expose 'src/style/abstracts/styler.dart' via the main barrel file.
Review Checklist

• Testing: Have you tested your changes, including unit tests and integration tests for affected code?
• Breaking Changes: Does this change introduce breaking changes affecting existing code or users?
• Documentation Updates: Are all relevant documentation files (e.g. README, API docs) updated to reflect the changes in this PR?
• Website Updates: Is the website containing the updates you make on documentation?

Additional Information (optional)

Unsure on placement of the export, have grouped it with the current exports in the closest directory. Let me know if you want it moved.

[docs-page]

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

docs.page/btwld/mix~900

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[vercel]

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[tilucasoli]

LGTM!