[ui] simplify mobile settings descriptions

apps/ios/CrossDeskMobile/ContentView.swift

@@ -797,10 +797,6 @@ private struct ServerSettingsView: View {
                     }
                 }
                 .pickerStyle(.segmented)
-
-                Text(session.mouseControlMode.detail)
-                    .font(.footnote)
-                    .foregroundStyle(.secondary)
             }
             Section("画面偏好") {
                 Picker("偏好模式", selection: $session.videoAdaptationPolicy) {
@@ -809,11 +805,6 @@ private struct ServerSettingsView: View {
                     }
                 }
                 .pickerStyle(.segmented)
-
-                Text(session.videoAdaptationPolicy.detail)
-                    .font(.footnote)
-                    .foregroundStyle(.secondary)
-
             }
             Section {
                 DisclosureGroup(isExpanded: $serverConfigurationExpanded) {
@@ -838,11 +829,6 @@ private struct ServerSettingsView: View {
                                 .accessibilityLabel("服务器端口")
                         }
                     }
-                    if usesCustomServer {
-                        Text("结束编辑后生效。关闭开关可立即切回默认配置。")
-                            .font(.footnote)
-                            .foregroundStyle(.secondary)
-                    }
                 } label: {
                     HStack {
                         Text("服务器")

apps/ios/CrossDeskMobile/PrivacyViews.swift

@@ -118,8 +118,6 @@ struct PrivacySettingsSection: View {
             }
         } header: {
             Text("隐私")
-        } footer: {
-            Text("画面预览默认关闭。开启后，从下一次连接起保存一张远程画面到本机，显示在最近连接中，不上传且不纳入设备备份。关闭开关会清除已有预览；连接记录和接收的文件不受影响。")
         }
         .alert("保存远程画面预览？", isPresented: $confirmThumbnails) {
             Button("开启保存") { session.setSavesConnectionThumbnails(true) }