v0.15.8 - Fix for empty `window_name: ''` on tmuxp

Bug fix for window names

• Allow empty window name, e.g. window_name: '' in tmuxp by @trankchung in #444

  #445 may have follow up fixes / triaging info on empty strings ''

New Contributors

• @trankchung made their first contribution in #444

Full Changelog: v0.15.7...v0.15.8