### 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_
if stream_spec:
                    record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
                new_record = copy.deepcopy(record)
                new_record["eventID"] = short_uid()
                new_record["eventName"] = "INSERT" if not existing_item else "MODIFY"
                new_record["dynamodb"]["Keys"] = keys
                new_record["dynamodb"]["NewImage"] = put_request["Item"]
                if existing_item:
                    new_record["dynamodb"]["OldImage"] = existing_item
                new_record["eventSourceARN"] = aws_stack.dynamodb_table_arn(table_name)
                new_record["dynamodb"]["SizeBytes"] = _get_size_bytes(put_request["Item"])
                records.append(new_record)
                i += 1
            update_request = request.get("Update")
            if update_request:
                table_name = update_request["TableName"]
                keys = update_request["Key"]
                updated_item = ItemFinder.find_existing_item(update_request, table_name)
                if not updated_item:
                    return []
                stream_spec = dynamodb_get_table_stream_specification(table_name=table_name)
                if stream_spec:
                    record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
                new_record = copy.deepcopy(record)
                new_record["eventID"] = short_uid()
                new_record["eventName"] = "MODIFY"
                new_record["dynamodb"]["Keys"] = keys
                new_record["dynamodb"]["OldImage"] = existing_items[i]
                new_record["dynamodb"]["NewImage"] = updated_item
                new_record["eventSourceARN"] = aws_stack.dynamodb_table_arn(table_name)