Address PR comments

public/locales/en/common.json

@@ -2,5 +2,10 @@
   "actions": {
     "save": "Save"
   },
-  "tip": "Tip: "
-}
+  "tip": "Tip: ",
+  "time": {
+    "seconds": "seconds",
+    "minutes": "minutes",
+    "hours": "hours"
+  }
+}

public/locales/en/modules/usenet.json

@@ -27,7 +27,10 @@
       "progress": "Progress"
     },
     "empty": "Queue is empty.",
-    "error": "Some error has occured while fetching data:",
+    "error": {
+      "title": "Error!",
+      "message": "Some error has occured while fetching data:"
+    },
     "paused": "Paused"
   },
   "history": {
@@ -37,7 +40,10 @@
       "duration": "Download Duration"
     },
     "empty": "Queue is empty.",
-    "error": "Some error has occured while fetching data:",
+    "error": {
+      "title": "Error!",
+      "message": "Some error has occured while fetching data:"
+    },
     "paused": "Paused"
   }
 }