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## **Description**

Yeah, due to some type assertions (evil), we did not receive a correct
value expected. Due to this we ended up performing a `.split` on an
undefined... then crash.

This adds some safer logic and also fixes the area that call the
function with the wrong inputs.

A separate PR will be ready that fixes these bad type assertions.

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2. What is the improvement/solution?
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## **Related issues**

Fixes:

## **Manual testing steps**

1. Create a MATIC send/receive notification
2. Open details
3. See crash

## **Screenshots/Recordings**


![image](https://github.com/MetaMask/metamask-extension/assets/17534261/4f4bb77d-dabd-4226-983a-b6d6ff2bb6b5)


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

### **Before**

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### **After**

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## **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.

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