Hide the namespace for task names nested in the tree view #239

For example, a tree structure of build:run, build:clean shows up like this today:

build
├── build:run
├── build:clean

I would like to be able to configure a setting to hide the namespace so it shows as this since the namespace is redundant and clutters the view (especially for multiple levels of namespaces):

build
├── run
├── clean

Thank you very much! I'm really enjoying this plugin and appreciate your work.