[WIP] Clean up kinds

[PawelPeczek-Roboflow]

Description

This PR is to address #608

Since last big update to EE we do not really need those legacy markers of Batch[X] and instead we shall just use X.

This PR is quite risky as this introduce breaking change, but I believe that it is better to do this step now rather than wait for this to become problematic in ecosystem. List of things that will break:

• integration with UI, as we rely on kinds' names Batch[X] - easily to be fixed
• some custom Python blocks pointing Batch[X] kinds (see changes in tests) - I believe we have near to zero instances of those in registered workflows, as this feature did not land in UI
• existing open-source plugins and internal plugins (none I am aware of, but we can query FEs)

List of things that will not break:

• workflows that are created w/o Dynamic Python Blocks (see no changes in integration tests)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How has this change been tested, please provide a testcase or example of how you tested the change?

YOUR_ANSWER

Any specific deployment considerations

For example, documentation changes, usability, usage/costs, secrets, etc.

Docs

• Docs updated? What were the changes:

[PawelPeczek-Roboflow]

https://github.com/roboflow/roboflow/pull/4255 - the correlated PR