Remove all the things for feedback

Again, I'm not actually suggesting that you merge this in and remove all your code. This just makes it easier to leave feedback :smile: 

### Don't merge this pull request
`get_data` is not very descriptive. It would be better to name this something like `all_recipes` and then to also include the query so that you could use it again in the future:

```ruby
def all_recipes
  query = 'SELECT id, name FROM recipes
          ORDER BY name ASC'

  db_connection do |conn|
    conn.exec(query)
  end
end

# ...

get '/recipes' do
  @recipe_names = all_recipes(query)
  erb :recipes
end
```