### 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_
global_table_region: str | None = find_global_table_region(
            table_name=put_item_input.get("TableName"), target_region=context.region
        )
        existing_item = None
        table_name = put_item_input["TableName"]
        event_sources_or_streams_enabled = has_event_sources_or_streams_enabled(table_name)
        if event_sources_or_streams_enabled:
            existing_item = ItemFinder.find_existing_item(put_item_input)
        result = self._forward_request(context=context, region=global_table_region)
        
        if event_sources_or_streams_enabled:
            stream_spec = dynamodb_get_table_stream_specification(table_name=table_name)
            item = put_item_input["Item"]
            
            keys = SchemaExtractor.extract_keys(item=item, table_name=table_name)
            
            record = self.get_record_template()
            record["eventName"] = "INSERT" if not existing_item else "MODIFY"
            record["dynamodb"].update(
                {
                    "Keys": keys,
                    "NewImage": item,
                    "SizeBytes": _get_size_bytes(item),
                }
            )
            if stream_spec:
                record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
            if existing_item:
                record["dynamodb"]["OldImage"] = existing_item