add mux to experiments && update translations

assets/translations/strings_en.i18n.json

@@ -193,8 +193,8 @@
             "resetBtn": "Reset options",
             "serviceMode": "Service Mode",
             "serviceModes": {
-                "proxy": "Proxy",
+                "proxy": "Proxy Service Only",
-                "systemProxy": "System Proxy",
+                "systemProxy": "Set System Proxy",
                 "tun": "VPN"
             },
             "section": {

assets/translations/strings_fa.i18n.json

@@ -193,8 +193,8 @@
             "resetBtn": "گزینه ها را بازنشانی کنید",
             "serviceMode": "حالت سرویس",
             "serviceModes": {
-                "proxy": "پروکسی",
+                "proxy": "فقط سرویس پروکسی",
-                "systemProxy": "پروکسی سیستم",
+                "systemProxy": "تنظیم پروکسی سیستم",
                 "tun": "VPN"
             },
             "section": {

lib/features/config_option/model/config_option_entity.dart

@@ -67,7 +67,7 @@ class ConfigOptionEntity with _$ConfigOptionEntity {
     if (PlatformUtils.isDesktop && serviceMode == ServiceMode.tun) {
       return true;
     }
-    if (enableTlsFragment || enableTlsMixedSniCase || enableTlsPadding) {
+    if (enableTlsFragment || enableTlsMixedSniCase || enableTlsPadding||enableMux) {
       return true;
     }