Correct site favicons are not displayed in the Shields panel

[MadhaviSeelam]

Description

Steps to Reproduce

1. Install 1.45.1
2. Launch Brave
3. visit https://cnn.com
4. click Shields icon
5. click learn more link in the Shields panel

Actual result:

Incorrect icons rendered

Ex1	Ex2

Expected result:

CNN favicon should render for CNN.com
When clicked on Learn more link Brave favicon should render in the Shields panel for https://brave.com/privacy-features/ page

Reproduces how often:

Easily

Brave version (brave://version info)

Brave	1.45.1 Chromium: 105.0.5195.37 (Official Build) nightly (64-bit)
Revision	5f67e9f258cc28ab970e57572290edf1863ee3c5-refs/branch-heads/5195@{#621}
OS	Windows 11 Version 21H2 (Build 22000.856)

Version/Channel Information:

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

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:

[GeetaSarvadnya]

Issue is NOT reproducible in RC - 1.42.x hence adding the regression label

[GeetaSarvadnya]

Verification PASSE on

Brave | 1.43.82 Chromium: 105.0.5195.58 (Official Build) (64-bit)
-- | --
Revision | 1907e1693887af4463221a10247360b7a056db49-refs/branch-heads/5195_47@{#3}
OS | Windows 10 Version 21H2 (Build 19044.1889)

Ensured that correct site favicon is shown in the shield panel
Staging:

Example	Example	Example	Example	Example	Example

Production

Example	Example	Example	Example	Example	Example