Fix animating poll configuration button size change when selected option

changes

Tusker/Screens/Compose/ComposePollView.swift

@@ -59,19 +59,21 @@ struct ComposePollView: View {
             }
 
             HStack {
-                // use .animation(nil) on the binding and .frame(maxWidth: .infinity) on labels so frame doesn't have a size change animation when the text changes
-                Picker(selection: $poll.multiple.animation(nil), label: Text(poll.multiple ? "Allow multiple choices" : "Single choice").frame(maxWidth: .infinity)) {
+                // use .animation(nil) on pickers so frame doesn't have a size change animation when the text changes
+                Picker(selection: $poll.multiple, label: Text(poll.multiple ? "Allow multiple choices" : "Single choice")) {
                     Text("Allow multiple choices").tag(true)
                     Text("Single choice").tag(false)
                 }
+                .animation(nil)
                 .pickerStyle(MenuPickerStyle())
                 .frame(maxWidth: .infinity)
                 
-                Picker(selection: $duration.animation(nil), label: Text(verbatim: ComposePollView.formatter.string(from: duration.timeInterval)!).frame(maxWidth: .infinity)) {
+                Picker(selection: $duration, label: Text(verbatim: ComposePollView.formatter.string(from: duration.timeInterval)!)) {
                     ForEach(Duration.allCases, id: \.self) { (duration) in
                         Text(ComposePollView.formatter.string(from: duration.timeInterval)!).tag(duration)
                     }
                 }
+                .animation(nil)
                 .pickerStyle(MenuPickerStyle())
                 .frame(maxWidth: .infinity)
             }

Tusker/Screens/Compose/ComposeView.swift

@@ -65,7 +65,6 @@ struct ComposeView: View {
             
             autocompleteSuggestions
         }
-        .onAppear(perform: self.didAppear)
         .navigationBarTitle("Compose")
         .actionSheet(isPresented: $uiState.isShowingSaveDraftSheet, content: self.saveAndCloseSheet)
         .alert(isPresented: $isShowingPostErrorAlert) {
@@ -154,11 +153,6 @@ struct ComposeView: View {
         .disabled(!postButtonEnabled)
     }
     
-    private func didAppear() {
-        let proxy = UIScrollView.appearance(whenContainedInInstancesOf: [ComposeHostingController.self])
-        proxy.keyboardDismissMode = .interactive
-    }
-    
     private func cancel() {
         if Preferences.shared.automaticallySaveDrafts {
             // draft is already stored in drafts manager, drafts manager is saved by ComposeHostingController.viewWillDisappear