[FEAT] Activities' Versioning

# Feature Request
Upon making updates to some custom activities I realized that a property representing the Activity's version exists.
When I opened the designer after installing the new activity I saw that the Version Number is not represented on the designer.
I suggest creating a visual indicator of what version is selected (a badge maybe), opposed to the current implementation of simply creating a new "block"

## Current Implementation

### Using these Activities:

### The produced outcome on the designer is:

## Suggested Outcome