feat(frontend): add option to hide all available items from discovery (#699)

src/context/SettingsContext.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 import { PublicSettingsResponse } from '../../server/interfaces/api/settingsInterfaces';
 import useSWR from 'swr';
 
-interface SettingsContextProps {
+export interface SettingsContextProps {
   currentSettings: PublicSettingsResponse;
 }
 
@@ -10,6 +10,7 @@ const defaultSettings = {
   initialized: false,
   movie4kEnabled: false,
   series4kEnabled: false,
+  hideAvailable: false,
 };
 
 export const SettingsContext = React.createContext<SettingsContextProps>({