`Brave icon` missing in the tab title for `brave://welcome`

[MadhaviSeelam]

Description

Steps to Reproduce

1. Install 1.43.84
2. Launch Brave
3. Notice the image for brave://welcome tab

Actual result:

Brave image is missing next to Welcome to Brave title for brave://welcome tab

Expected result:

Brave icon should render similar to brave://version tab?

Reproduces how often:

Easily

Brave version (brave://version info)

Brave | 1.43.84 Chromium: 105.0.5195.68 (Official Build) (64-bit)
-- | --
Revision | ad13e82529051bac6a0e65f455e6d7a1e5fd7938-refs/branch-heads/5195@{#903}
OS | Windows 11 Version 21H2 (Build 22000.856)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? N/A

Other Additional Information:

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

Miscellaneous Information:

@rebron @brave/qa-team

[rebron]

cc: @nullhook

[rebron]

cc: @nullhook