Merge #259

259: Fix compilation when vietnamese feature is disabled r=irevoire a=timvisee

# Pull Request

## Related issue
Fixes <#258>

## What does this PR do?
- Fixes compilation without `vietnamese` feature
- Puts related import behind conditional feature attribute

## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?

Thank you so much for contributing to Meilisearch!


Co-authored-by: timvisee <[email protected]>

charabia/src/normalizer/mod.rs

@@ -15,6 +15,7 @@ pub use self::japanese::JapaneseNormalizer;
 pub use self::lowercase::LowercaseNormalizer;
 use self::nonspacing_mark::NonspacingMarkNormalizer;
 use self::quote::QuoteNormalizer;
+#[cfg(feature = "vietnamese")]
 pub use self::vietnamese::VietnameseNormalizer;
 use crate::segmenter::SegmentedTokenIter;
 use crate::Token;