Fix issue with multiple onboarding tabs opening up for Magic Eden

[HEagle18]

Description

When we try connect Brave Wallet to Magic Eden on Solana, it just creates multiple tabs endlessly.

Attached is video replicating this issue. Done on 1.48 on desktop.

Screen.Recording.2023-02-15.at.19.16.09.mov

Steps to Reproduce

1. try connecting Brave wallet to magic eden
2. on 1.48
3. with a new browser profile and don't have the wallet already created.

Actual result:

Expected result:

Reproduces how often:

Desktop Brave version:

Android Device details:

• Install type (ARM, x86):
• Device type (Phone, Tablet, Phablet):
• Android version:

Version/Channel Information:

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

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:

[srirambv]

Verification passed on

Brave	1.50.85 Chromium: 111.0.5563.64 (Official Build) beta (64-bit)
Revision	c710e93d5b63b7095afe8c2c17df34408078439d-refs/branch-heads/5563@{#995}
OS	Linux

• Verified steps from brave/brave-core#17241
• Verified only one onboarding tab is loaded when visiting https://magiceden.io and clicking on Connect Wallet
• Verified if an onboarding tab is already opened via the page, trying again to connect doesn't launch a new one

28546.mp4

---

Verification passed on

Brave	1.50.85 Chromium: 111.0.5563.64 (Official Build) beta (64-bit)
Revision	c710e93d5b63b7095afe8c2c17df34408078439d-refs/branch-heads/5563@{#995}
OS	Windows 11 Version 22H2 (Build 22621.1344)

• Verified steps from brave/brave-core#17241
• Verified only one onboarding tab is loaded when visiting https://magiceden.io and clicking on Connect Wallet
• Verified if an onboarding tab is already opened via the page, trying again to connect doesn't launch a new one

28546.mp4

---

Verification passed on

Brave	1.50.85 Chromium: 111.0.5563.64 (Official Build) beta (arm64)
Revision	c710e93d5b63b7095afe8c2c17df34408078439d-refs/branch-heads/5563@{#995}
OS	macOS Version 13.0 (Build 22A380)

• Verified steps from brave/brave-core#17241
• Verified only one onboarding tab is loaded when visiting https://magiceden.io and clicking on Connect Wallet
• Verified if an onboarding tab is already opened via the page, trying again to connect doesn't launch a new one

28546.mov

[kjozwiak]

The above will require 1.49.132 or higher for 1.49.x verification 👍

[srirambv]

Verification passed on

Brave	1.49.132 Chromium: 111.0.5563.147 (Official Build) (64-bit)
Revision	029fd65a4dd711d1078468ed2206999cec86066b-refs/branch-heads/5563@{#1239}
OS	Windows 11 Version 22H2 (Build 22621.1413)

• Verified steps from brave/brave-core#17241
• Verified only one onboarding tab is loaded when visiting https://magiceden.io and clicking on Connect Wallet
• Verified if an onboarding tab is already opened via the page, trying again to connect doesn't launch a new one

28546.mp4