Add ToggleSwitch component and QuillSense settings management

- Added `ToggleSwitch` component for handling toggles with labels, descriptions, and disabled states.
- Introduced `QuillSenseSetting` component for managing QuillSense enablement and advanced prompt settings.
- Integrated `QuillSenseSettings` model and API calls for fetching and updating settings.

lib/models/QuillSenseSettings.ts

@@ -0,0 +1,4 @@
+export interface QuillSenseSettingsProps {
+    quillsenseEnabled: boolean;
+    advancedPrompt: string | null;
+}