MVP Version 3: Proposing content with chainlink

[jasonklein]

This PR enables decentralized content proposal.

Dapp:

• a user submits a URL
• the URL is sent to the back-end for processing
• the back-end sends the title from the URL to the front-end which then asks the user to send the proposal transaction (unlike with consuming content, the user pays)
• if the user's proposal is successful, their points increase

Blockchain:

• anyone can submit a content item (hash as the identifier, URL, and title)
• the submission is sent to Chainlink Functions with JS code that makes an API call to OpenAI to validate the content item is likely related to financial literacy and well-being
• Chainlink responds with the result, true or false—if true, the proposer is rewarded

🚨 Special build procedures

@rjpence: please be sure to update the README to include this information about the special build procedures.

In order to retain the one-line change made to @wagmi/core to be able to sign raw messages when the code is pushed here to GitHub or to deploy the dapp, I used patch-package to create a commit that retains my change in a patch.

To deploy the app to Vercel with these changes, I first build the app locally and then I deploy (as opposed to sending the code to Vercel to build there, where it would download the NPM packages from the registry, not include the change I made, and fail):

$ yarn vercel build
...
$ yarn vercel deploy --prebuilt