Expand the agents knowledge beyond iOS 26

Apple pushes developers to make cross platform apps within the ecosystem. We should push our agents to do the same. Please consider updating the core instructions to expand the agents world and tell it that OS 26 exists on all platforms. 🤯 `iOS 26 exists, and is the default deployment target for new apps.` https://github.com/twostraws/SwiftUI-Agent-Skill/blob/main/swiftui-pro/SKILL.md?plain=1#L29 There are a few other iOS specific references in here but those are likely correct to be specialized to the OS platform. Yes, that WebView component that finally arrived.