LG-6205: Add endpoint, button to trigger password reset (IdV app)

[aduth]

Why: So that a user will receive an email to reset their password after confirming to do password reset during identity proofing.

Testing Instructions:

You will need to set the step as enabled in your local config/application.yml:

development:
  idv_api_enabled_steps: '["password_confirm","personal_key","personal_key_confirm"]'

1. Navigate to http://localhost:3000
2. Sign in
3. Navigate to http://localhost:3000/verify
4. Complete proofing flow up to password confirmation step
5. Click "Follow these instructions" (adjacent "Forgot your password?")
6. Click Reset Password button
7. Observe that you're redirected to a page confirming password reset, including the correct email for the current user

Screen recording:

Screen.Recording.2022-05-17.at.4.45.21.PM.mov

FYI @anniehirshman-gsa @Kamal-Munshi : Since the (current) implementation calls to an API before redirecting, I opted to use the spinner button we use elsewhere for asynchronous page transitions. This button is an outline button, which we haven't implemented as spinner buttons until now.

[aduth]

Prior to pushing this, I had an idea for an alternative implementation, which is to update the password reset controller to have an action which would trigger the password reset. We likely don't want this to be part of the default GET action, but I could imagine a new create method in the controller implementation?

Then, on this page, we could use the <ButtonTo /> component to post to that controller, using the redirectURL context being added in #6323.

I'm open to revising if it seems preferable to others.

[anniehirshman-gsa]

I opted to use the spinner button we use elsewhere for asynchronous page transitions. This button is an outline button, which we haven't implemented as spinner buttons until now.

Loading state style looks nice, thanks for flagging @aduth! Maybe something to put on our next design system office hours agenda for awareness/adding both styles to Figma?

[aduth]

Maybe something to put on our next design system office hours agenda for awareness/adding both styles to Figma?

Good idea! I'll add it to the agenda.

[zachmargolis]

LGTM