Move manually added swapsTransactions state out out TransactionController

### What is this about?

From: https://github.com/MetaMask/metamask-mobile/pull/9442#discussion_r1589011924

In Mobile, the field `swapsController` is manually added to the `TransactionController` and accessed in several different places to determine the Swap metadata (e.g. From/To tokens, amounts).

This should really be put somewhere else, probably in a Redux slice.

This needs to be addressed when the TransactionController updates to v^25 or more, because TransactionController at that version will extend the BaseControllerV2 and that will not allow direct updates to the state anymore.

### Scenario

_No response_

### Design

_No response_

### Technical Details

_No response_

### Threat Modeling Framework

_No response_

### Acceptance Criteria

All Swap metadata is still able to be accessed correctly when not looked up from the `TransactionController.swapsTransactions`

### 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

https://github.com/MetaMask/metamask-mobile/pull/9442#discussion_r1589011924

Start by tracing the manually added TransactionController.swapsController and its swapsTransactions references, using the discussion in PR #9442 as context. Identify every place that reads Swap metadata and determine how the proposed Redux slice will provide equivalent access; done means all Swap metadata remains accessible without TransactionController.swapsTransactions.

Written by the indexing model from the issue text.