refactor: remove all eslint-disable statements and fix underlying issues

- Replace @typescript-eslint/no-explicit-any with proper Filter type from nostr-tools/filter in dataFetch.ts and helpers.ts
- Replace @typescript-eslint/no-explicit-any with IAccount and AccountManager types from applesauce-accounts in hooks
- Replace @typescript-eslint/no-explicit-any with unknown type casts in App.tsx for keep-alive subscription
- Fix react-hooks/exhaustive-deps warnings by including all dependencies in useEffect hooks
- Remove unused _settings parameters in useImageCache.ts that were causing no-unused-vars warnings

src/hooks/useImageCache.ts

@@ -1,5 +1,3 @@
-import { UserSettings } from '../services/settingsService'
-
 /**
  * Hook to return image URL for display
  * Service Worker handles all caching transparently
@@ -9,9 +7,7 @@ import { UserSettings } from '../services/settingsService'
  * @returns The image URL (Service Worker handles caching)
  */
 export function useImageCache(
-  imageUrl: string | undefined,
-  // eslint-disable-next-line no-unused-vars
-  _settings?: UserSettings
+  imageUrl: string | undefined
 ): string | undefined {
   // Service Worker handles everything - just return the URL as-is
   return imageUrl
@@ -22,9 +18,7 @@ export function useImageCache(
  * Triggers a fetch so the SW can cache it even if not visible yet
  */
 export function useCacheImageOnLoad(
-  imageUrl: string | undefined,
-  // eslint-disable-next-line no-unused-vars
-  _settings?: UserSettings
+  imageUrl: string | undefined
 ): void {
   // Service Worker will cache on first fetch
   // This hook is now a no-op, kept for API compatibility