`AccountManager` should be decoupled with `Wallet`

### Problem Statement

`Wallet` is tired specifically with a chain, but `AccountManager` doesn't need to be tired with a chain, so please decouple them. Every API needs wallet, they can take it as param, like `Contract`.  

### Proposed Solution

_No response_

### Example Use Case

_No response_

### Alternative Solutions

_No response_

### Additional Context

_No response_