Fix eslint warnings in ts files

src/components/ServerContentPage.tsx

@@ -4,6 +4,7 @@ import { useLocation } from 'react-router-dom';
 import ServerConnections from './ServerConnections';
 import viewManager from './viewManager/viewManager';
 import globalize from '../scripts/globalize';
+import type { RestoreViewFailResponse } from '../types/viewManager';
 
 interface ServerContentPageProps {
     view: string
@@ -29,7 +30,7 @@ const ServerContentPage: FunctionComponent<ServerContentPageProps> = ({ view })
             };
 
             viewManager.tryRestoreView(viewOptions)
-                .catch(async (result?: any) => {
+                .catch(async (result?: RestoreViewFailResponse) => {
                     if (!result || !result.cancelled) {
                         const apiClient = ServerConnections.currentApiClient();
 

src/components/viewManager/ViewManagerPage.tsx

@@ -2,6 +2,7 @@ import React, { FunctionComponent, useEffect } from 'react';
 import { useLocation } from 'react-router-dom';
 
 import globalize from '../../scripts/globalize';
+import type { RestoreViewFailResponse } from '../../types/viewManager';
 import viewManager from './viewManager';
 
 export interface ViewManagerPageProps {
@@ -45,7 +46,7 @@ const ViewManagerPage: FunctionComponent<ViewManagerPageProps> = ({
             };
 
             viewManager.tryRestoreView(viewOptions)
-                .catch(async (result?: any) => {
+                .catch(async (result?: RestoreViewFailResponse) => {
                     if (!result || !result.cancelled) {
                         const [ controllerFactory, viewHtml ] = await Promise.all([
                             import(/* webpackChunkName: "[request]" */ `../../controllers/${controller}`),

src/elements/emby-scroller/Scroller.tsx

@@ -126,7 +126,7 @@ const Scroller: FC<ScrollerProps> = ({
     }, [getScrollPosition, getScrollSize, getScrollWidth]);
 
     const initCenterFocus = useCallback((elem: EventTarget, scrollerInstance: scrollerFactory) => {
-        dom.addEventListener(elem, 'focus', function (e: { target: any; }) {
+        dom.addEventListener(elem, 'focus', function (e: FocusEvent) {
             const focused = focusManager.focusableParent(e.target);
             if (focused) {
                 scrollerInstance.toCenter(focused, false);

src/types/viewManager.ts

@@ -0,0 +1,3 @@
+export interface RestoreViewFailResponse {
+    cancelled?: boolean
+}

src/utils/jellyfin-apiclient/getItems.ts

@@ -31,25 +31,26 @@ function getItemsSplit(apiClient: ApiClient, userId: string, options: GetItemsRe
 function mergeResults(results: BaseItemDtoQueryResult[]) {
     const merged: BaseItemDtoQueryResult = {
         Items: [],
-        TotalRecordCount: 0,
         StartIndex: 0
     };
+    // set TotalRecordCount separately so TS knows it is defined
+    merged.TotalRecordCount = 0;
 
     for (const result of results) {
-        if (result.Items == null) {
+        if (!result.Items) {
             console.log('[getItems] Retrieved Items array is invalid', result.Items);
             continue;
         }
-        if (result.TotalRecordCount == null) {
+        if (!result.TotalRecordCount) {
             console.log('[getItems] Retrieved TotalRecordCount is invalid', result.TotalRecordCount);
             continue;
         }
-        if (result.StartIndex == null) {
+        if (typeof result.StartIndex === 'undefined') {
             console.log('[getItems] Retrieved StartIndex is invalid', result.StartIndex);
             continue;
         }
         merged.Items = merged.Items?.concat(result.Items);
-        merged.TotalRecordCount! += result.TotalRecordCount;
+        merged.TotalRecordCount += result.TotalRecordCount;
         merged.StartIndex = Math.min(merged.StartIndex || 0, result.StartIndex);
     }
     return merged;