Add Left Resize handle to Groups

### Feature Idea

Right now you can only resize groups to expand to the right. It would be cool if you can add the same handle on the opposite end (bottom left side) to resize groups to expand to the left. This will allow you to group elements easier without having to drag them around to fit them in a group.

It also would be nice to have Groups be included in Node Templates

### Existing Solutions

_No response_

### Other

_No response_