⚡ Refactors all Glances widgets to inherit from parent mixin

docs/widgets.md

@@ -1187,11 +1187,13 @@ All Glance's based widgets require a `hostname`
 **Field** | **Type** | **Required** | **Description**
 --- | --- | --- | ---
 **`hostname`** | `string` |  Required | The URL to your Glances instance (without a trailing slash)
+**`username`** | `string` |  _Optional_ | If you have setup basic auth on Glances, specify username here (defaults to `glances`)
+**`password`** | `string` |  _Optional_ | If you have setup basic auth on Glances, specify password here. **Note**: since this password is in plaintext, it is important not to reuse it anywhere else
 
 
 ##### Info
 - **CORS**: 🟢 Enabled
-- **Auth**: 🟢 Not Required
+- **Auth**: 🟠 Optional
 - **Price**: 🟢 Free
 - **Host**: Self-Hosted (see [GitHub - Nicolargo/Glances](https://github.com/nicolargo/glances))
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