Input dollar-sign changed to match placeholder

[IsaacHardy]

Feature / Fixed Issue(s)

• Input dollar-sign changed to match placeholder.

Testing/Documentation

• [X] All significant new logic is covered by tests.
• [X] Storybook documentation has been added.

QA Process

All new features and fixes should be tested and signed off on in the device testing document that corresponds to this PR. This PR should be tested and PASS on all devices/breakpoints prior to releasing.

Reporting Bugs

If you find an issue, a bug, or something that seems weird, thank you! That is extremely helpful. You can report this kind of feedback using our GitHub Issues page. Here are a few things that are great to include in an issue:

• Reference to this pull request.
• Steps to reproduce the issue
• Explanation of the buggy behavior
• Explanation of the expected behavior
• Screenshots of the app if helpful

Here is a link to a good example issue.

[richarddubay]