[BUG] - Block Module: Temporary class name for the position

[furcan]

Describe the bug

For the Block Module;
The temporary class name for the static positioned reference elements can not be related to the options and/or can not be dynamic. Add and remove methods have their own instances and these options always will be different from each other if using method-based init options instead of the global init.
The temporary class name should be static or a built-in state can be used to store the previous one.

Expected behaviour

The temporary class name should be removed in any case.

Additional context

This issue is also related to: #45