Installer v1.1.1

• Fix encoding
• Change icon

Full Changelog: v1.1.0...v1.1.1

Installer v1.1.0

• Simplified installation steps
• The installer can now automatically process image and custom.css after selecting image

Full Changelog: v1.0.0...v1.1.0

Installer v1.0.0

• Add "--custom-css" flag to the install_windows.bat script
• Fix python utf-8 coding issue in install.py

Full Changelog: https://github.com/The-Lost-Light/Adwaita-Steam-Wallpaper/commits/v1.0.0