fix: prevent default filters from getting overwritten

Clear Filters button was not unchecking selected filters because of a reference
between settings and defaultSettings. i.e., whenever filters changed, the filter reasons in the defaultFilters
object also changed, which is not desirable.

Using the spread operator to get selected filters fixes this issue

Author: aravindparappil46

src/renderer/routes/Filters.tsx

@@ -22,7 +22,7 @@ export const FiltersRoute: FC = () => {
   const { settings, clearFilters, updateSetting } = useContext(AppContext);
 
   const updateReasonFilter = (reason: Reason, checked: boolean) => {
-    let reasons: Reason[] = settings.filterReasons;
+    let reasons: Reason[] = [...settings.filterReasons];
 
     if (checked) {
       reasons.push(reason);