Replace twitter-post-fetcher methods with sys call to twint

[BonfaceKilz]

Description

This PR:

• Creates a web template for voting on tweets
• Cleans up the code structure of feeds
• Replace twitter-post-fetcher methods with sys call to twint

How should this be tested?

Ensure redis is running.

# Assumption, you are running REDIS on the default ports
git clone git@github.com:BonfaceKilz/feedanalyser.git

cd feedanalyser

# Run the tweet fetch daemon
racket bin/add-tweets.rkt &

# Run the server and vote on the tweets
racket bin/polling-server.rkt

Any background context you want to provide

N/A

What are the relevant pivotal tracker stories?

https://github.com/genenetwork/genenetwork2/issues/400

Screenshots (if appropriate)

Click to view the full image


Question

N/A