### 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_
"""
    Context manager that modifies the region of a `RequestContext`. At the exit, the context is restored to its
    original state.
    :param context: the context to modify
    :param region: the modified region
    :return: a modified `RequestContext`
    """
    original_region = context.region
    original_authorization = context.request.headers.get("Authorization")
    context.region = region
    context.request.headers["Authorization"] = re.sub(
        r"Credential=([^/]+/[^/]+)/(.*?)/",
        rf"Credential=\1/{region}/",
        original_authorization or "",
        flags=re.IGNORECASE,
    )
    yield context
    
    context.region = original_region
    context.request.headers["Authorization"] = original_authorization
class DynamoDBProvider(DynamodbApi, ServiceLifecycleHook):
    def __init__(self):
        self.request_forwarder = get_request_forwarder_http(self.get_forward_url)
    def on_after_init(self):