surround sound UI, localization tweak & fixes

VoidLink/Localization/Localizable.xcstrings

@@ -3667,6 +3667,29 @@
         }
       }
     },
+    "Stereo (surround sound available for iOS18+)" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "双声道 (iOS18+支持环绕声)"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "双声道 (iOS18+支持环绕声)"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "双声道 (iOS18+支持环绕声)"
+          }
+        }
+      }
+    },
     "Successfully sent wake-up request. It may take a few moments for the PC to wake. If it never wakes up, ensure it's properly configured for Wake-on-LAN." : {
       "extractionState" : "manual",
       "localizations" : {