NiceKey 1.0.0

NiceKey 1.0.0 final build.\n\nDownload DMG:\nhttps://github.com/klee3721/NiceKey/releases/download/v1.0.0/NiceKey-1.0.0.dmg\n\nHighlights:\n- Forked from OpenKey with NiceKey branding and bundle id.\n- First-run Accessibility permission flow now prompts first, then relaunches after permission is granted.\n- Clipboard history feature ported from mkey.\n- Clean drag-and-drop DMG installer.\n\nNote: DMG is locally/ad-hoc signed and not notarized.