[FEAT] Remove the Model Generation Application form provided by JotForm

[tbouffard]

Is your feature request related to a problem? Please describe.

Per team decision, we don't want to let people submit data.

Describe the solution you'd like

Remove the form from the website and eventually add a message about the new status

• will be back later
• nothing this is just an informative page
• contact us with [FEAT] Add a new page: Contact Us #635

NOTE: the replacements proposed ☝🏿 MUST be discussed prior the implementation

Additional context

The form in the JotForm account should be disabled after this issue is implemented.

[tbouffard]

⚠️ The form is KO today. I guess we removed the Form in JotForm prior implementing this issue.
It would have been probably better to first remove the form from the site prior to start actions on JotForm to avoid such error displayed on the site.

Anyway, let's implement this issue quickly

[tbouffard]

⚠️ https://process-analytics.dev/model-generation-application-conditions now returns an HTTP 404.

A redirect should be put in place!

[csouchet]

The redirection doesn't work fine at the first time. So, we keep the 404 redirection.
I think it's a bug with Gatsby.

ℹ️ See my comment #1179 (comment)