feat: cross-chain swaps ui re-design (#28373)

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## **Description**
Changes include
- layout and styling updates for the landing screen
- re-styling input fields, including asset pickers
- integrates the multichain asset list into bridge's token list
generator
- style + copy updates in quote display components
- advanced settings modal
- input and quote validation alerts
- bug fixes

This depends on 3 open PRs
1. tracking events:
#28713
2. multichain AssetPicker:
#28975
3. NetworkAvatar style update:
#28976

Changes from #2 and #3 are currently included here, but will mainly just
contain bridge component updates after those are merged. Since those are
being reviewed by external teams, reviews on this one should be focused
on bridge-specific files/directories

Figma:
https://www.figma.com/design/IuOIRmU3wI0IdJIfol0ESu/Cross-Chain-Swaps?node-id=7-24563&node-type=canvas&m=dev

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## **Related issues**

Fixes: https://consensyssoftware.atlassian.net/browse/MMS-1451

## **Manual testing steps**

1. Set these in .metamaskrc and run `yarn webpack --watch`
```
SEGMENT_HOST='http://localhost:9090'
SEGMENT_WRITE_KEY='FAKE'
BRIDGE_USE_DEV_APIS=1
```
2. Try out the Bridge page, asset picker, submitting txs, viewing quotes
etc
3. Open the background console network tab to see emitted events

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

<!-- [screenshots/recordings] -->
![Screenshot 2024-12-11 at 3 02
20 PM](https://github.com/user-attachments/assets/826f7cba-202d-4a52-b15f-ca16c29d7a96)


### **After**

<!-- [screenshots/recordings] -->

## **Pre-merge author checklist**

- [X] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
Extension Coding
Standards](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/CODING_GUIDELINES.md).
- [X] I've completed the PR template to the best of my ability
- [X] I’ve included tests if applicable
- [X] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [X] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

---------

Co-authored-by: infiniteflower <[email protected]>
Co-authored-by: Jack Clancy <[email protected]>