Release v2.3.0

Deploy using GitHub actions

Remove conda from GitHub action

Fix and update GitHub actions

Explicitly use text progress bars

Mark ipywidgets as an optional dependency

Whitespace for readability

Use posix-compliant syntax in examples

Modernize packaging

Hide output and block when lines is None

Show JobState when lines is 0

Fix tail for large job arrays

Show output only for pending or running jobs

Speedup tail to support large number of jobs

Function for splitting lists