v0.4.1

• Added the ability to color nodes and edges in xgi.draw() by value, iterable, or NodeStat/EdgeStat (#139, #142, and #143).
• Fixed the distortion of the node aspect ratio with different figure sizes in Issue #137.
• Moved the isolates() and singletons() method from the Hypergraph class to the NodeView and EdgeView classes respectively (#146).
• Fixed Hypergraph.copy() to not use the subhypergraph method (#145).
• filterby() now accepts NodeStat and EdgeStat objects instead of just strings (#144).
• Removed edit-mode install to run the Github Actions test suite (#136).
• Added unit tests (#147).

Contributors: @nwlandry, @leotrs, and @maximelucas