Labeling activity bar icon as Python is unclear

[cwebster-99]

This used to be labeled as Python Environments and then was changed to Python. In user studies we observed this was unclear for users and they didnt always know this was where they could look for environment management.

The extension name is "Python Environments", should this match?

[eleanorjboyd]

this is under discussion right @cwebster-99? we are looking for some more feedback here?