Plugin infrastructure relies on type_name, despite non-uniqueness guarantees

## What problem does this solve or what need does it fill?

Here now, it seems that we use type names to check if a plugin has been added:

But acturally, the type name is not a unique identifier in rust:

So I think it is possible for different plugins to have the same type name. Once it happeded, our method above may lead to errors

## What solution would you like?

Maybe we can use the `TypeId` instead

## What alternative(s) have you considered?

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## Additional context

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