fix(Tracker): clean imports and add missing useDebounce import

Author: Jai-Shankar1033

src/pages/Tracker/Tracker.tsx

@@ -48,7 +48,6 @@ import { useDebounce } from "../../hooks/useDebounce";
 import {
   Visibility,
   VisibilityOff,
-  Refresh,
   FilterList,
   ClearAll,
 } from "@mui/icons-material";