Log promise failures instead of ignoring them (#531)

In case the failure does not get handled, it should at least get logged, to prevent silently ignoring it

src/screens/DownloadQueue.tsx

@@ -29,6 +29,7 @@ import { ChapterType, DownloadType } from '@/lib/graphql/generated/graphql.ts';
 import { TChapter } from '@/typings.ts';
 import { NavBarContext } from '@/components/context/NavbarContext.tsx';
 import { LoadingPlaceholder } from '@/components/util/LoadingPlaceholder.tsx';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
 
 const HeightPreservingItem = ({ children, ...props }: BoxProps) => (
     // the height is necessary to prevent the item container from collapsing, which confuses Virtuoso measurements
@@ -203,7 +204,7 @@ export const DownloadQueue: React.FC = () => {
             return;
         }
 
-        requestManager.startDownloads().response.catch(() => {});
+        requestManager.startDownloads().response.catch(defaultPromiseErrorHandler('DownloadQueue::startDownloads'));
     };
 
     if (isLoading) {

src/screens/Reader.tsx

@@ -30,6 +30,7 @@ import { NavBarContext } from '@/components/context/NavbarContext.tsx';
 import { useDebounce } from '@/util/useDebounce.ts';
 import { UpdateChapterPatchInput } from '@/lib/graphql/generated/graphql.ts';
 import { useMetadataServerSettings } from '@/util/metadataServerSettings.ts';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
 
 const isDupChapter = async (chapterIndex: number, currentChapter: TChapter) => {
     const nextChapter = await requestManager.getChapter(currentChapter.manga.id, chapterIndex).response;
@@ -209,7 +210,7 @@ export function Reader() {
                 chapterIdToDelete: getChapterIdToDelete(),
                 downloadAheadMangaId: shouldDownloadAhead ? chapter.manga.id : undefined,
             })
-            .response.catch(() => {});
+            .response.catch();
     };
 
     const setSettingValue = (key: keyof IReaderSettings, value: string | boolean) => {
@@ -264,7 +265,9 @@ export function Reader() {
 
     useEffect(() => {
         if (!areDefaultSettingsLoading && !isMangaLoading) {
-            checkAndHandleMissingStoredReaderSettings(manga, 'manga', defaultSettings).catch(() => {});
+            checkAndHandleMissingStoredReaderSettings(manga, 'manga', defaultSettings).catch(
+                defaultPromiseErrorHandler('Reader::checkAndHandleMissingStoredReaderSettings'),
+            );
             setSettings(getReaderSettingsFor(manga, defaultSettings));
         }
     }, [areDefaultSettingsLoading, isMangaLoading]);

src/screens/settings/About.tsx

@@ -25,6 +25,7 @@ import { LoadingPlaceholder } from '@/components/util/LoadingPlaceholder';
 import { GetAboutQuery, UpdateState } from '@/lib/graphql/generated/graphql.ts';
 import { ABOUT_WEBUI, WEBUI_UPDATE_CHECK } from '@/lib/graphql/Fragments.ts';
 import { makeToast } from '@/components/util/Toast.tsx';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
 
 type AboutServer = GetAboutQuery['aboutServer'];
 
@@ -224,7 +225,9 @@ export function About() {
 
         const resetUpdateStatus = isError || updateFinished;
         if (resetUpdateStatus) {
-            requestManager.resetWebUIUpdateStatus().response.catch(() => {});
+            requestManager
+                .resetWebUIUpdateStatus()
+                .response.catch(defaultPromiseErrorHandler('About::resetWebUIUpdateStatus'));
         }
 
         if (!updateFinished) {
@@ -326,7 +329,11 @@ export function About() {
                                 isUpdateAvailable={isWebUIUpdateAvailable}
                                 updateCheckError={webUIUpdateCheckError}
                                 checkForUpdate={checkForWebUIUpdate}
-                                triggerUpdate={() => requestManager.updateWebUI().response.catch(() => {})}
+                                triggerUpdate={() =>
+                                    requestManager
+                                        .updateWebUI()
+                                        .response.catch(defaultPromiseErrorHandler('About::updateWebUI'))
+                                }
                                 progress={webUIUpdateProgress}
                                 updateState={webUIUpdateState}
                             />

src/screens/settings/DefaultReaderSettings.tsx

@@ -20,6 +20,7 @@ import {
 import { ReaderSettingsOptions } from '@/components/reader/ReaderSettingsOptions';
 import { makeToast } from '@/components/util/Toast';
 import { NavBarContext, useSetDefaultBackTo } from '@/components/context/NavbarContext';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
 
 export function DefaultReaderSettings() {
     const { t } = useTranslation();
@@ -58,7 +59,7 @@ export function DefaultReaderSettings() {
         { meta: convertToGqlMeta(metadata)! },
         'server',
         getDefaultSettings(),
-    ).catch(() => {});
+    ).catch(defaultPromiseErrorHandler('DefaultReaderSettings::checkAndHandleMissingStoredReaderSettings'));
 
     return (
         <ReaderSettingsOptions