[Chore] - Add forum urls to constants js file

[jdwilkin4]

What work needs to be done?

There are 4 urls we will be working with that represents the data we will be displaying to the user.

Forum topic url
https://forum.freecodecamp.org/t/

Forum category url
https://forum.freecodecamp.org/c/

Forum avatars url
https://sea1.discourse-cdn.com/freecodecamp

Forum API
https://forum-proxy.freecodecamp.rocks/latest

Inside the constants.js file, create four const variables for the urls listed above. Make sure they are in upper case snake case. Make sure all four variables are named exports.

For example,

export const VARIABLE_NAME1 = url goes here
export const VARIABLE_NAME2 = url goes here
export const VARIABLE_NAME3 = url goes here

Then in the index.js file, import all of those variables.

Here is a helpful resources for imports/exports
https://bobbyhadz.com/blog/javascript-export-function