Re-enable animations inside modal presentation modifiers

[mikhailChelbaev]

Problem

Placing any modal on a parent view unexpectedly turned off every SwiftUI animation in that parent hierarchy. Example:

VStack {
  SULoading()               // ← should spin
  Button("Show Modal") { isPresented.toggle() }
}
.bottomModal(isPresented: $isPresented) {
  Text("Modal Content")
}

Observed: the SULoading spinner froze as soon as the bottomModal is added—even though the modal is not presented.

Root cause

ModalPresentationModifier ended with:

.transaction { $0.disablesAnimations = true }

Because a Transaction propagates down the view tree, this flag disabled all descendant animations, including those unrelated to the modal itself.

Fix

Immediately reset the flag for the caller’s content:

content                          // original body’s `content`
  .transaction { $0.disablesAnimations = false }   // ✅ re-enable for content
  ...
  .fullScreenCover { ... }
  .transaction { $0.disablesAnimations = true }    // 🚫 disable for `fullScreenCover`

• The inner .transaction { … = false } is higher in the hierarchy, so every animation in the caller’s view (including SULoading) now runs normally.
• The outer .transaction { … = true } still prevents unwanted implicit animations during presentation/dismissal state changes.