Update About page to show correct SDK runtime version

[dmvtech]

Describe the bug

Current runtime packages are 4.18.1. About page still shows 4.12.0

Version

2.1.2 AND Release: 2.1.2-nightly.339293.66a028a

Browser

• [x] Electron distribution
• [ ] Chrome
• [ ] Safari
• [ ] Firefox
• [x] Edge

OS

• [ ] macOS
• [x] Windows
• [ ] Ubuntu

Screenshots