Add watcher status and additional typing.

src/util/ipcTypes.json

@@ -22,6 +22,11 @@
   },
   "toRenderer": {
     "test": "toRenderer_test",
+    "watcher": {
+      "started": "toRenderer_watcher_started",
+      "stopped": "toRenderer_watcher_stopped",
+      "error": "toRenderer_watcher_error"
+    },
     "user": {
       "getToken": "toRenderer_user_getToken"
     }

src/util/translations/en-US/renderer.json

@@ -6,7 +6,14 @@
 		},
 		"settings": {
 			"actions": {
-				"addpath": "Add path"
+				"addpath": "Add path",
+				"startwatcher": "Start Watcher",
+				"stopwatcher": "Stop Watcher\n"
+			},
+			"labels": {
+				"started": "Started",
+				"stopped": "Stopped",
+				"watcherstatus": "Watcher Status"
 			}
 		}
 	}