### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

DynamoDB does not correctly namespace resources based on region and account ID. 

For instance, using the same table name across accounts and regions throws an error.

### Expected Behavior

It must be possible to create resources with same name on different regions and/or different accounts.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

```
  $ AWS_ACCESS_KEY_ID=445500880268 AWS_DEFAULT_REGION=eu-central-1 \
    awslocal dynamodb create-table --table-name CertificateTargets-local1 \
        --key-schema AttributeName=target_uuid,KeyType=HASH \
        --attribute-definitions AttributeName=target_uuid,AttributeType=S \
        --provisioned-throughput ReadCapacityUnits=1000,WriteCapacityUnits=1000

  $ AWS_ACCESS_KEY_ID=445500880268 AWS_DEFAULT_REGION=us-east-1 \
    awslocal dynamodb create-table --table-name CertificateTargets-local1 \
        --key-schema AttributeName=target_uuid,KeyType=HASH \
        --attribute-definitions AttributeName=target_uuid,AttributeType=S \
        --provisioned-throughput ReadCapacityUnits=1000,WriteCapacityUnits=1000

    # ResourceInUseException!

  $ AWS_ACCESS_KEY_ID=000000000000 \
    awslocal dynamodb create-table --table-name CertificateTargets-local1 \
        --key-schema AttributeName=target_uuid,KeyType=HASH \
        --attribute-definitions AttributeName=target_uuid,AttributeType=S \
        --provisioned-throughput ReadCapacityUnits=1000,WriteCapacityUnits=1000

    # ResourceInUseException!
```

### Environment

```markdown
OS: Ubuntu 22.04
LocalStack: latest
```


### Anything else?

_No response_
self.forward_stream_records([record], table_name=table_name)
        return result
    @handler("DeleteItem", expand=False)
    def delete_item(
        self,
        context: RequestContext,
        delete_item_input: DeleteItemInput,
    ) -> DeleteItemOutput:
        existing_item = None
        table_name = delete_item_input["TableName"]
        if has_event_sources_or_streams_enabled(table_name):
            existing_item = ItemFinder.find_existing_item(delete_item_input)
        
        result = self.forward_request(context)
        
        if existing_item:
            event_sources_or_streams_enabled = has_event_sources_or_streams_enabled(table_name)
            if event_sources_or_streams_enabled:
                
                record = self.get_record_template()
                record["eventName"] = "REMOVE"
                record["dynamodb"].update(
                    {
                        "Keys": delete_item_input["Key"],
                        "OldImage": existing_item,
                        "SizeBytes": _get_size_bytes(existing_item),
                    }
                )
                
                stream_spec = dynamodb_get_table_stream_specification(table_name=table_name)