[GREENFOOT-501] Allow 'static' and 'final' after var
Enable 'static' and 'final' commands also when frame cursor is below var (because the cursor often is under the variable when we want to set this.
If the frame cursor is between two vars, it can still operator on the one below by default. (We do a similar thing with 'else' extensions for ifs.
- Issue type: Task
- Priority: Medium
- Fix versions: 3.0.2