refactor Search

- have a separate body view for each os
- macOS: set navigation title for search
- macOS: set min width to 835 for main content
- macOS: set main window min height to 600
- macOS: don’t have text behind the cancel button
- split SearchTextField into macOS and iOS/tvOS
- iOS: move search menu to the right
- iOS: unified search field
- make min width a constant
- add option to disable search suggestions

Signed-off-by: Toni Förster <toni.foerster@gmail.com>

Shared/Home/HomeView.swift

@@ -152,7 +152,7 @@ struct HomeView: View {
         #endif
         #if os(macOS)
         .background(Color.secondaryBackground)
-        .frame(minWidth: 360)
+        .frame(minWidth: Constants.contentViewMinWidth)
         .toolbar {
             ToolbarItemGroup(placement: .automatic) {
                 HideWatchedButtons()