Cover connection to 5 most popular Dapps with Native UI tests on Android and iOS

### What is this about?

1. uniswap.org
2. opensea.io
3. pancakeswap.finance
4. relay.link
5. https://portfolio.metamask.io

UI Test should open these websites, connect MetaMask wallet and make sure that it's successfully connected.

Subtask for the Epic https://github.com/MetaMask/mobile-planning/issues/2232

### Scenario

_No response_

### Design

_No response_

### Technical Details

_No response_

### Threat Modeling Framework

_No response_

### Acceptance Criteria

_No response_

### Stakeholder review needed before the work gets merged

- [x] Engineering (needed in most cases)
- [ ] Design
- [ ] Product
- [ ] QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
- [ ] Security
- [ ] Legal
- [ ] Marketing
- [ ] Management (please specify)
- [ ] Other (please specify)

### References

_No response_

Start with the linked Epic and the five listed Dapp websites to understand the intended scope for native UI tests on Android and iOS. Done means the tests open each site, connect the MetaMask wallet, and verify that the connection succeeds; no test files or entry points are named in the issue.

Written by the indexing model from the issue text.