Refactor(reCAPTCHA): remove icons

[angela-tran]

Closes #2538

This PR removes the bankcard and idcardcheck icons and removes them from the Eligibility Start and Enrollment Index pages.

Screenshots of this branch

Page	Icons removed (Desktop)	Icons removed (Mobile)
Eligibility start
Enrollment index
Enrollment index (with alert component)

[github-actions]

Coverage report

This PR does not seem to contain any modification to coverable code.

[angela-tran]

@thekaveman On #2537, it's noted that we should deploy all the changes out together:

All these tickets should be completed before a deploy.

What should merging these PRs look like?

Merge into main and hold off any deployment until all tickets are done? Start a new branch to merge all these PRs into, which is merged into main at the end? I'm leaning towards the second option.

// cc @machikoyasuda

[thekaveman]

@angela-tran Hmmm, I was thinking of the first option, but the second probably makes more sense just in case we need to release something before this is all ready.

[machikoyasuda]

The second option sounds better to me too.

[angela-tran]

@thekaveman @machikoyasuda Got it, thanks! I created refactor/recaptcha-copy for our reCAPTCHA PRs to go into.

edit: I created a branch protection rule for it too, copying settings for the one for main

[thekaveman]

nitpick: this is more than just copy right?

[angela-tran]

nitpick: this is more than just copy right?

It is. My thought was all these changes are stemming from us deciding to use our own reCAPTCHA copy instead of the badge, but I'm open to using a different branch name. Do you have one in mind?

[machikoyasuda]

I'm assuming this class media-list-icon-left-margin will be deleted in this ticket, #2569, and then we can delete all (or most) of these:

:root {
  --media-item-icon-size: calc(64rem / 16);
  --media-item-gap: calc(24rem / 16);
  --media-item-icon-margin: calc(24rem / 16);
}
@media (min-width: 992px) {
  :root {
    --media-item-icon-size: calc(90rem / 16);
    --media-item-gap: calc(24rem / 16);
    --media-item-icon-margin: calc(32rem / 16);
  }
}