Newsletter UI

[Zelig880]

As a client I would like to be able to signup to a newsletter form the footer of the site.

Note: The newsletter functionality need to be merged before this can be worked on

AC:

• [x] If the newsletter Environment is not available, do not show the newsletter in the footer
• [x] Show newsletter in the footer as shown in figma
• [x] Show a success message on successfully registration
• [x] Show an error message if registration fails

NEW AC:

• [x] Add a new banner for the newsletter on the homepage as shown in the following figma
• [x] Change the words shows in the banner to: Sign up for our newsletter Stay updated on the latest blockchain and smart contract content - delivered straight to your inbox!
• [x] Footer on the homepage will stay as it currently is on production
• [x] Footer on any other page, will have the newly created Newsletter box

https://www.figma.com/file/9eqpfWUrL3gAQ6Royvl75u/Blockchain-Education?node-id=11051%3A72307

Update V3:

• [ ] Change the API endpoint to use hub spot forms (ask the link to simone)
• [ ] Remove any unused Variables ( i think the variable with the hubspot id is not needed anymore)
• [ ] change the object sent over to have the structure shown below
• [ ] test it (create a form and test it)

Expected object:

{
  "fields": [
    {
      "name": "email",
      "value": "[email protected]"
    }
  ]
}