Hide connections page by default since unstable

Library/Network/CommandClient.swift

@@ -22,7 +22,7 @@ public class CommandClient: ObservableObject {
     @Published public var clashModeList: [String]
     @Published public var clashMode: String
 
-    @Published public var connectionStateFilter = ConnectionStateFilter.all
+    @Published public var connectionStateFilter = ConnectionStateFilter.active
     @Published public var connectionSort = ConnectionSort.byDate
     @Published public var connections: [LibboxConnection]?
     public var rawConnections: LibboxConnections?

Library/Shared/Variant.swift

@@ -1,4 +1,5 @@
 import Foundation
+import Libbox
 
 public enum Variant {
     #if os(macOS)
@@ -14,4 +15,6 @@ public enum Variant {
     #elseif os(tvOS)
         public static let applicationName = "SFT"
     #endif
+
+    public static var isBeta = LibboxVersion().contains("-")
 }