ui(app): update labels for unmatched rule actions in Picker components

ShadowsocksX-NG2/App/HomeView.swift

@@ -161,14 +161,17 @@ private struct ModeCard: View {
           .labelsHidden()
           .frame(maxWidth: 480, alignment: .leading)
           if control.snapshot.proxyMode == .rule {
-            Picker("未匹配默认动作", selection: ruleDefaultActionBinding) {
-              ForEach(RuleDefaultAction.allCases, id: \.self) { action in
-                Text(action.label).tag(action)
+            HStack(spacing: 8) {
+              Text("未匹配规则时")
+              Picker("未匹配规则时", selection: ruleDefaultActionBinding) {
+                ForEach(RuleDefaultAction.allCases, id: \.self) { action in
+                  Text(action.label).tag(action)
+                }
               }
+              .pickerStyle(.segmented)
+              .labelsHidden()
+              .frame(maxWidth: 480, alignment: .leading)
             }
-            .pickerStyle(.segmented)
-            .labelsHidden()
-            .frame(maxWidth: 480, alignment: .leading)
           }
           Text(modeDescription(control.snapshot.proxyMode))
             .font(.callout)

ShadowsocksX-NG2/App/ProxyStatusMenu.swift

@@ -72,7 +72,7 @@ struct ProxyStatusMenu: View {
 
     // 规则模式子选项（issue #63）：仅规则模式呈现。
     if snapshot.proxyMode == .rule {
-      Picker("未匹配默认动作", selection: ruleDefaultActionBinding) {
+      Picker("未匹配规则时", selection: ruleDefaultActionBinding) {
         ForEach(RuleDefaultAction.allCases, id: \.self) { action in
           Text(action.label).tag(action)
         }

ShadowsocksX-NG2/Domain/ProxyRule.swift

@@ -18,8 +18,8 @@ enum RuleDefaultAction: String, Codable, CaseIterable, Equatable, Hashable, Send
 
   var label: String {
     switch self {
-    case .proxyWhenUnmatched: "未匹配时代理"
-    case .directWhenUnmatched: "未匹配时直连"
+    case .proxyWhenUnmatched: "代理"
+    case .directWhenUnmatched: "直连"
     }
   }