### 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_
result = self.forward_request(context)
        
        streams_enabled_cache = {}
        records = self.prepare_transact_write_item_records(
            transact_items=transact_write_items_input["TransactItems"],
            existing_items=existing_items,
        )
        event_sources_or_streams_enabled = False
        for record in records:
            event_sources_or_streams_enabled = (
                event_sources_or_streams_enabled
                or has_event_sources_or_streams_enabled(
                    record["eventSourceARN"],
                    streams_enabled_cache,
                )
            )
        if event_sources_or_streams_enabled:
            self.forward_stream_records(records)
        return result
    @handler("TransactGetItems", expand=False)
    def transact_get_items(
        self,
        context: RequestContext,
        transact_items: TransactGetItemList,
        return_consumed_capacity: ReturnConsumedCapacity = None,
    ) -> TransactGetItemsOutput:
        return self.forward_request(context)
    @handler("ExecuteTransaction", expand=False)
    def execute_transaction(