Better error messages (somewhat)

_locales/en/messages.json

@@ -1,4 +1,32 @@
 {
+  "CRASH": {
+    "description": "",
+    "message": "Interal Browser Error"
+  },
+  "FILE_FAILED": {
+    "description": "",
+    "message": "File Access Error"
+  },
+  "NETWORK_FAILED": {
+    "description": "",
+    "message": "Network Failure"
+  },
+  "SERVER_BAD_CONTENT": {
+    "description": "",
+    "message": "Not Found"
+  },
+  "SERVER_FAILED": {
+    "description": "",
+    "message": "Server Error"
+  },
+  "SERVER_FORBIDDEN": {
+    "description": "",
+    "message": "Forbidden"
+  },
+  "SERVER_UNAUTHORIZED": {
+    "description": "",
+    "message": "Unauthorized"
+  },
   "add-download": {
     "description": "Action for adding a download",
     "message": "Add Download"

windows/manager/table.ts

@@ -188,7 +188,7 @@ export class DownloadItem extends EventEmitter {
       return this.eta;
     }
     if (this.error) {
-      return this.error;
+      return _(this.error) || this.error;
     }
     return StateTexts.get(this.state);
   }