Add touchpoints

[greg-does-weather]

What does this PR do? 🛠️

Adds the Touchpoints script. If we should be using a different form, we'll need to update this URL. Here's the form I created, with @sarahmhgov and I as form managers:

https://touchpoints.app.cloud.gov/admin/forms/22acf675

closes #913

Questions for Sarah

• I used the "blue button and modal" option. We don't have much control over the button except for the text. It shows up at the far bottom right. Is that okay, or should we use one of the other options?

What does the reviewer need to know? 🤔

Screenshots (if appropriate): 📸

[eric-gade]

The button action and modal are working for me here no problem. I assume the form itself should not be working locally, however, because it requires some kind of credentials/token? I'm getting a CSRF invalid token error when trying to submit a message

[greg-does-weather]

Correct. The form will only work on beta.weather.gov. We have control over where it's allowed to come from, and for now I opted to restrict it.

[eric-gade]

From a technical perspective, this is good to go. Needs a rebase though, and some accessibility tests are failing that I don't quite understand

[greg-does-weather]

The accessibility test errors are related to Touchpoints. Holding this PR for a couple days to see if they have tips on how to resolve them, or so we can decide on a workaround.

Slack thread