The home page top bar is cluttered

### What is this about?

With multi-networks established, we have an opportunity to remove our network picker, and also clean up a much overdue area of our home page. There is ongoing work on this from [Trade lane design clean up](https://www.figma.com/design/1F3yNWYLOVPFpTPeJugH20/Mobile-Home---Swaps?m=auto&node-id=169-1238&t=BQ8SLy84y2OeWdWN-1) and [Amanda's home screen Figma](https://www.figma.com/design/DyR0BlVTKo8bm74doQvZpi/Home-Page?node-id=0-1&t=HnGp6msCB6QbISpa-1).

### Scenario

_No response_

### Design

[Trade lane design clean up](https://www.figma.com/design/1F3yNWYLOVPFpTPeJugH20/Mobile-Home---Swaps?m=auto&node-id=169-1238&t=BQ8SLy84y2OeWdWN-1)

[Amanda's home screen Figma](https://www.figma.com/design/DyR0BlVTKo8bm74doQvZpi/Home-Page?node-id=0-1&t=HnGp6msCB6QbISpa-1)

### Technical Details

_No response_

### Threat Modeling Framework

_No response_

### Acceptance Criteria

_No response_

### Stakeholder review needed before the work gets merged

- [ ] 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 by reviewing the two linked Figma designs and locating the mobile home-page top-bar implementation. Confirm the intended network-picker removal and remaining cleanup with design and product before changing code. Acceptance criteria and tests are not provided, so completion should be checked against the approved designs and stakeholder review.

Written by the indexing model from the issue text.