[bug]: User embeds are inserted in the prompt each time the chat is opened.

[codedealer]

Describe the bug
User specified embeddings are inserted in the prompt each time the chat is opened resulting in duplication and context waste.

To Reproduce
Steps to reproduce the behavior:

1. Create a simple text embed
2. Start a new chat and use the embedding
3. Use sidebar navigation to go to any other page
4. Return to the chat
5. After generating a new message, embedding content now doubles.
6. Repeat steps 3-5, each time a new duplicate appears

Expected behavior
Embedding content is only ever used once in the prompt.

Screenshots

Test embed

Embed content doubling