Windows support

The beta brings support for Microsoft Windows as the highlight feature

Changes:

• Added Windows support (tested on Windows 10)
• Added notification for available updates
• Add visual feedback when mousing over tiles & clicking
• New packages:
  • Linux:
    • Snap (pending approval in the snap store)
  • Windows:
    • Installer exe
    • Portable
• New website
• Much misc. code cleanup & minor improvements