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/Constants.swift

@@ -63,6 +63,14 @@ enum Constants {
         #endif
     }
 
+    static var detailsVisibility: Bool {
+        #if os(iOS)
+            false
+        #else
+            true
+        #endif
+    }
+
     static var progressViewScale: Double {
         #if os(macOS)
             0.4
@@ -95,11 +103,11 @@ enum Constants {
         #endif
     }
 
-    static var detailsVisibility: Bool {
-        #if os(iOS)
-            false
+    static var contentViewMinWidth: Double {
+        #if os(macOS)
+            835
         #else
-            true
+            0
         #endif
     }