[Bug]: Storage not creating new Environment Variables

### Pre-flight checklist

- [x] I searched existing issues and didn't find a duplicate.
- [x] I tried a hard reload (Cmd/Ctrl + Shift + R) and the bug persists.
- [x] I tried in an incognito/private window and the bug persists.

### Bug Type

Functionality (feature not working as expected)

### Severity

Medium — feature partially broken, workaround exists

### Page / Area

Create / Creators (/create)

### URL

https://decentraland.org/storage/select

### Environment

Production (prd)

### Description

Cannot create new Environment Variables in https://decentraland.org/storage/select, the "Save" button does nothing.

### Frequency

Always (100%)

### Regression?

Unknown

### Last known working version / date

_No response_

### Steps to Reproduce

1. Go to https://decentraland.org/storage/select
2. Click on "Edit"
3. Try to create new Environment Variables

### Expected Behavior

Environment Variables should be saved

### Actual Behavior

Environment Variables do not save when you click "Save"

### Browser

Chrome

### Browser version

148.0.7778.168

### Operating System

Windows

### OS version

_No response_

### Device type

Desktop

### Site language

English (en)

### Authentication Method

Wallet Provider (MetaMask, Rabby, etc.)

### Auth Details

_No response_

### Blockchain Network

None

### Screenshots / Screen Recording

https://github.com/user-attachments/assets/b0781aa5-bf9a-44b9-a45c-999a2b86adfe

### Console Errors

```shell

```

### Failed Network Requests

```shell

```

### Additional Context

_No response_