### 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._fix_endpoint(kwargs)
        return connect_to_service(service, *args, **kwargs)
    def _fix_endpoint(self, kwargs):
        if "amazonaws.com" in kwargs.get("endpoint_url", ""):
            kwargs.pop("endpoint_url")
def get_boto3_session(cache=True):
    if not cache or CREATE_NEW_SESSION_PER_BOTO3_CONNECTION:
        return boto3.session.Session()
    
    return boto3
def get_region():
    
    from localstack.utils.aws.request_context import get_region_from_request_context
    region = get_region_from_request_context()
    if region:
        return region
    
    return get_local_region()
def get_partition(region_name: str = None):
    region_name = region_name or get_region()
    return boto3.session.Session().get_partition_for_region(region_name)
def get_local_region():
    global LOCAL_REGION
    if LOCAL_REGION is None:
        LOCAL_REGION = get_boto3_region() or ""
    return config.DEFAULT_REGION or LOCAL_REGION
def get_boto3_region() -> str:
    """Return the region name, as determined from the environment when creating a new boto3 session"""
    return boto3.session.Session().region_name
def is_internal_call_context(headers):