fix(tests): fix eslint warnings

ui/src/Components/NavBar/FilterInput/index.test.tsx

@@ -8,7 +8,6 @@ import toDiffableHtml from "diffable-html";
 import { useFetchGetMock } from "__fixtures__/useFetchGet";
 import { AlertStore, NewUnappliedFilter } from "Stores/AlertStore";
 import { Settings } from "Stores/Settings";
-import { useFetchGet } from "Hooks/useFetchGet";
 import { FilterInput } from ".";
 
 let alertStore: AlertStore;

ui/src/__fixtures__/Fetch.ts

@@ -86,7 +86,7 @@ const EmptyAPIResponse = (): APIAlertsResponseT => ({
   },
 });
 
-const MockAPIResponse = () => {
+const MockAPIResponse = (): APIAlertsResponseT => {
   const response = EmptyAPIResponse();
   response.grids = [
     {
@@ -112,7 +112,10 @@ const MockAPIResponse = () => {
   return response;
 };
 
-const MockSilenceResponse = (cluster: string, count: number) => {
+const MockSilenceResponse = (
+  cluster: string,
+  count: number
+): APIManagedSilenceT[] => {
   const silences: APIManagedSilenceT[] = [];
   for (let index = 1; index <= count; index++) {
     const silence = MockSilence();

ui/src/__fixtures__/matchMedia.ts

@@ -1,4 +1,11 @@
-const mockMatchMedia = (mapOfMedia: any) => {
+interface mapOfMediaT {
+  matches: boolean;
+  media: string;
+}
+
+const mockMatchMedia = (mapOfMedia: {
+  [query: string]: mapOfMediaT;
+}): jest.MockedFunction<typeof window.matchMedia> => {
   return jest.fn().mockImplementation((query) => {
     return {
       matches: mapOfMedia[query] ? mapOfMedia[query].matches : false,