Support of Hardware Buttons

Hardware Scan button works (tested on S1500M - please test and confirm on other scanners)

What's Changed

• ScanSnap iX1600 nativ unterstützen, iX1300/iX1400/iX1500/iX500EE vorläufig by @timpritlove in #6
• Seitenraster: Tastaturnavigation, Finder-artiges Quick Look, Vorschaugröße by @timpritlove in #7

Full Changelog: 2026.4...2026.5