Add InsetViewModifier (#424)

Author: Kyle-Ye

Sources/OpenSwiftUICore/Layout/Alignment/AlignmentGuide.swift

@@ -1243,7 +1243,7 @@ public struct AlignmentKey: Hashable, Comparable {
     @inline(__always)
     var index: Int { Int(bits / 2 - 1) }
 
-    package init(id: AlignmentID.Type, axis: Axis) {
+    package init(id: any AlignmentID.Type, axis: Axis) {
         let index = Self.$typeCache.access { cache in
             let identifier = ObjectIdentifier(id)
             if let value = cache.typeIDs[identifier] {

Sources/OpenSwiftUICore/Layout/LayoutComputer/LayoutComputer.swift

@@ -252,7 +252,6 @@ extension StatefulRule where Value == LayoutComputer {
         } create: {
             engine
         }
-
     }
 
     package mutating func updateIfNotEqual<E>(to engine: E) where E: Equatable, E: LayoutEngine {