Add qBittorrent Widget

- extract cookie jar functionality into its own file
- use i18n for more strings in existing widgets

completes: #152
associated: #123

src/components/services/widget.jsx

@@ -11,6 +11,7 @@ import Emby from "./widgets/service/emby";
 import Nzbget from "./widgets/service/nzbget";
 import SABnzbd from "./widgets/service/sabnzbd";
 import Transmission from "./widgets/service/transmission";
+import QBittorrent from "./widgets/service/qbittorrent";
 import Docker from "./widgets/service/docker";
 import Pihole from "./widgets/service/pihole";
 import Rutorrent from "./widgets/service/rutorrent";
@@ -41,6 +42,7 @@ const widgetMappings = {
   nzbget: Nzbget,
   sabnzbd: SABnzbd,
   transmission: Transmission,
+  qbittorrent: QBittorrent,
   pihole: Pihole,
   rutorrent: Rutorrent,
   speedtest: Speedtest,