feat(inquiries): add sidebar nav item, icon, and API endpoint

- Add "Inquiries" nav item to sidebar data with `/inquiries` URL and BriefcaseTimer icon
- Implement BriefcaseTimer SVG icon component
- Add `INQUIRIES` base endpoint to API_ENDPOINTS
- Cleanup: remove commented details button in CmsTable, reorder imports

src/components/Layouts/sidebar/data/index.ts

@@ -86,6 +86,12 @@ export const NAV_DATA: NavData = [
         icon: GlobeSearch,
         items: [],
       },
+      {
+        title: "Inquiries",
+        url: "/inquiries",
+        icon: Icons.BriefcaseTimer,
+        items: [],
+      },
     ],
   },
 ];