[FEATURE] Jina AI support

[davepoon]

Describe the feature you'd like Adding Jina AI to Flowise will be a valuable enhancement for embedding nodes.

Additionally, Langchain JS has support for the Jina AI embedding models integration, https://python.langchain.com/docs/integrations/text_embedding/jina

Additional context We discovered that the Jina embedding is superior to bge/gte solutions and supports multiple languages, making it a valuable alternative to OpenAI embedding.

[aimzieslol]

This would be great! Would a workaround be using the Ollama Embeddings or the Custom Open AI Embeddings nodes?