- Upgraded all direct pub dependencies to their latest major versions:
  assorted_layout_widgets ^12.12.1 -> ^13.1.0,
  new_loading_indicator ^1.2.2 -> ^2.0.0
- Re-resolved 23 transitive packages
- Updated version, README and CHANGELOG

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>