Custom favourites names not visible on certain NTP images

[srirambv]

Description

Custom favourites names not visible on certain NTP images

Steps to Reproduce

1. Install nightly 1.23.19
2. Add a bunch of custom favourites
3. Site names are not legible on certain NTP images

Actual result:

Expected result:

Should be visible on all images or when hovered over

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	1.23.19 Chromium: 89.0.4389.72 (Official Build) nightly (64-bit)
Revision	3f345f156bfd157bd1bea06310e55f3fb2490359-refs/branch-heads/4389@{#1393}
OS	Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? NA
• Can you reproduce this issue with the beta channel? NA
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? NA
• Does the issue resolve itself when disabling Brave Rewards? NA
• Is the issue reproducible on the latest version of Chrome? NA

Miscellaneous Information:

cc: @simonhong @rebron @bsclifton @karenkliu

[GeetaSarvadnya]

Reproduced in Windows 10 x64 - 1.23.59