[Release] Create new release with features and fixes (v1.1)

[larsmaxfield]

• [x] License, if applicable
• [x] New file boilerplate, if applicable
  • [x] Shebang #!/usr/bin/env python3
  • [x] Credits
  • [x] License identifier # SPDX-License-Identifier: GPL-3.0-or-later
• [x] Docs, if applicable
• [x] Windows
  • [x] Windows executable (PyInstaller)
  • [x] Setup installer (InnoSetup)
  • [x] Add to pre-release
  • [x] Test on second PC
• [x] Mac, if applicable
  • [x] Mac package (PyInstaller)
  • [x] Test
  • [x] Add to pre-release
• [x] Add as pre-release to GitHub
• [ ] ~Microsoft Malware Analysis, if applicable~ Not applicable unless reported by other users
  • [ ] Submit file for analysis
  • [ ] Receive confirmation
• [x] Set as release on GitHub

Consider making a template for future release issues.