Bugfix: DocumentSplitter

[Maef]

Ensure short documents still receive a hash. Documents with content shorter than maxlength would not be hashed.

Simple test:

$documents = StringDataLoader::for('test')->getDocuments();
print_r($documents);

Array
(
    [0] => NeuronAI\RAG\Document Object
        (
            [embedding] => 
            [sourceType] => manual
            [sourceName] => manual
            [hash] => 
            [chunkNumber] => 0
            [content] => test
        )

)

[ilvalerione]

Thank you for the contribution!