UI & Data persistence for Send Special Keys menu

Limelight/Localization/Localizable.xcstrings

@@ -99,6 +99,17 @@
         }
       }
     },
+    "Add" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "新增"
+          }
+        }
+      }
+    },
     "Add Host Manually" : {
       "extractionState" : "manual",
       "localizations" : {
@@ -732,6 +743,9 @@
         }
       }
     },
+    "Key" : {
+      "extractionState" : "manual"
+    },
     "Launch App" : {
       "extractionState" : "manual",
       "localizations" : {