Merge branch 'develop' into steve/4734_room_stack

Riot/Modules/Common/SwiftUI/VectorHostingController.swift

@@ -41,10 +41,22 @@ class VectorHostingController: UIHostingController<AnyView> {
     
     override func viewDidLoad() {
         super.viewDidLoad()
+        
+        self.view.backgroundColor = .clear
+        
         self.registerThemeServiceDidChangeThemeNotification()
         self.update(theme: self.theme)
     }
     
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+    
+        // Fixes weird iOS 15 bug where the view no longer grows its enclosing host
+        if #available(iOS 15.0, *) {
+            self.view.invalidateIntrinsicContentSize()
+        }
+    }
+    
     private func registerThemeServiceDidChangeThemeNotification() {
         NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
     }
@@ -54,8 +66,6 @@ class VectorHostingController: UIHostingController<AnyView> {
     }
     
     private func update(theme: Theme) {
-        self.view.backgroundColor = theme.headerBackgroundColor
-        
         if let navigationBar = self.navigationController?.navigationBar {
             theme.applyStyle(onNavigationBar: navigationBar)
         }