env issue

Although I specified the env file, for some reason the code:

`src/constants/rpc.ts`
```ts
export const RPC_URL =
  IS_EMBEDDED === "true"
    ? window.location.origin
    : window.RPC_URL ?? import.meta.env.VITE_RPC_URL;
```

Wasn't picking up my RPC URL.
I had to update that line to:

```ts
export const RPC_URL = import.meta.env.VITE_RPC_URL;
```

For it to work