Conversations, consolidated wallets, commands, and swap agent

[danXyu]

• Enable multiple chats with conversation history in side panel [New Feature] #87
• Crypto token news agent should not be hardcoding and operating off symbols [Bug] #83
• Bash script to create a new agent complete with README on how to approach new agents
• Decluttered the wallets between CDP and Metamask
• Separated out API keys into a dedicated modal selection
• Redesigned the CDP wallets to be consistent with the rest of the UI
• Backslash commands to trigger specific agents

Major Redesign with Conversations Sidebar

• Sidebar now allows the creation of multiple chats at a time
• The sidebar also contains a lot of crucial settings that previously cluttered the header
• The logic around conversations is a major redesign because now chat requests contain a conversation ID, so chats should be updated based on the conversation that it is referencing.

Major Refactor with AgentCore

• All agents now utilize an AgentCore parent class to ensure the appropriate response formatting and prevent unexpected errors. We were previously passing around all sorts of data in the form of dicts, tuples, etc. that made debugging certain responses significantly more difficult than it needed to be.
• The AgentCore enforces new typed pydantic models for response types in models/core.py
• This required all of the agents to be updated and re-written to use AgentCore.
• This was a massive refactor, but was tested thoroughly.

New agents being enabled in this PR:

• Dexscanner agent
• Rugcheck agent
• Swap agent