Selecting "Never for this site" when prompted to remember the password has no effect

## Describe the Bug

Selecting "Never for this site" when prompted to remember the password has no effect

## Steps To Reproduce

1. Go to https://investor.vanguard.com/my-account/log-on
2. Enter a User Name and Password and click "Log On"
3. When prompted with "Should Bitwarden remember this password for you?" select "Never for this website"
4. If you've logged in with an actual account, then log off
5. Repeat steps 1-2

## Expected Result

After steps 1-3 you should never get the "Should Bitwarden remember this password for you?" again on the site

## Actual Result

Every time you do steps 1-2 you get the "Should Bitwarden remember this password for you?" prompt

## Environment

- Operating system: Windows 10
- Browser: Google Chrome Version 88.0.4324.182 (Official Build) (64-bit)
- Build Version 1.48.1

Reproduce the three-step flow at investor.vanguard.com/my-account/log-on in Chrome using the Windows 10 and Bitwarden versions listed. Done means selecting “Never for this website” prevents the password-save prompt from appearing again; the issue names no source files or tests, so the relevant browser-extension entry point must first be located.

Written by the indexing model from the issue text.