Feed Url should read Feed URL

Description

Feed Url should read Feed URL

Steps to Reproduce

1. new profile
2. launch Brave
3. opt in to Brave News
4. click on Customize on the new-tab page
5. click on Brave News
6. look beneath Your Sources

Actual result:

It reads Feed Url

Expected result:

Should read Feed URL

Reproduces how often:

100%

Brave version (brave://version info)

Brave	1.36.60 Chromium: 97.0.4692.99 (Official Build) nightly (64-bit)
Revision	d740da257583289dbebd2eb37e8668928fac5ead-refs/branch-heads/4692@{#1461}
OS	Windows 10 Version 20H2 (Build 19042.1466)

[Tonev]

@stephendonner

I think this one should be closed as resolved for https://github.com/brave/brave-core/pull/12431 was merged successfully.

[stephendonner]

Verified PASSED using

Brave	1.38.90 Chromium: 100.0.4896.79 (Official Build) beta (x86_64)
Revision	8fb749dcab8700c24213791969e59deb72fee36f-refs/branch-heads/4896@{#1015}
OS	macOS Version 11.6.5 (Build 20G527)

Confirmed the string now reads Feed URL