### 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 existing_item:
                    record["dynamodb"]["OldImage"] = existing_item
                stream_spec = dynamodb_get_table_stream_specification(table_name=table_name)
                if stream_spec:
                    record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
                self.forward_stream_records([record], table_name=table_name)
        return result
    @handler("GetItem", expand=False)
    def get_item(self, context: RequestContext, get_item_input: GetItemInput) -> GetItemOutput:
        global_table_region: str | None = find_global_table_region(
            table_name=get_item_input.get("TableName"), target_region=context.region
        )
        result = self._forward_request(context=context, region=global_table_region)
        self.fix_consumed_capacity(get_item_input, result)
        return result
    @handler("Query", expand=False)
    def query(self, context: RequestContext, query_input: QueryInput) -> QueryOutput:
        index_name = query_input.get("IndexName")
        if index_name:
            if not is_index_query_valid(query_input):
                raise ValidationException(
                    "One or more parameter values were invalid: Select type ALL_ATTRIBUTES "
                    "is not supported for global secondary index id-index because its projection "
                    "type is not ALL",
                )
        result = self.forward_request(context)
        self.fix_consumed_capacity(query_input, result)
        return result
    @handler("Scan", expand=False)
    def scan(self, context: RequestContext, scan_input: ScanInput) -> ScanOutput: