[Bug]: Assets - Cannot Add ERC20 token from the test-dapp

**Describe the bug**

Cannot Add ERC20 token form the test-dapp. We get this error in the background `"This token is not supported on this network"`.
This is however, possible in Extension, and it was possible to add the ERC20 token from the test dapp before.

**Screenshots/Recordings**

https://github.com/user-attachments/assets/47ff1e09-50ed-47e6-9828-bce87fee2a6a

**Steps to reproduce**

1. Go to the test dapp
2. Connect
3. Select Sepolia network
4. Deploy an ERC20 token contract
5. Click Add Token --> see nothing happens (and background error)

**Error messages or log output**

```shell

```

**Where was this bug found?**

Internal release testing

**Version**

7.62.0

**Build number**

3418

**Build type**

None

**Device**

Pixel 6

**Operating system**

Android