Crypto token news agent should not be hardcoding and operating off symbols [Bug]

[danXyu]

• The token news agent currently operates off of hardcoded crypto symbols.
• This has a few flaws:

1. Does not gracefully handle mispellings or alternative symbols (XBT for bitcoin, etc.)
2. Does not handle any queries where the user asks for "Recent news about morpheus"
3. Does not scale and limits the universe of crypto someone can search across (there are only 100 symbols in the config)

The crypto data agent takes an approach of fetching all protocols and then getting the most similar to a coin_name that is parsed from the chat message via the LLM. This agent should do something similar.