feat(server,web): make user deletion delay configurable (#7663)

* feat(server,web): make user deletion delay configurable

* alphabetical order

* add min for user.deleteDelay in SettingInputField

* make config.user.deleteDelay SettingInputField min consistent format

* fix e2e test

* update description on user delete delay

server/test/fixtures/system-config.stub.ts

@@ -27,6 +27,7 @@ export const systemConfigStub: Record<string, SystemConfigEntity[]> = {
     { key: SystemConfigKey.OAUTH_AUTO_REGISTER, value: true },
     { key: SystemConfigKey.OAUTH_DEFAULT_STORAGE_QUOTA, value: 1 },
   ],
+  deleteDelay30: [{ key: SystemConfigKey.USER_DELETE_DELAY, value: 30 }],
   libraryWatchEnabled: [{ key: SystemConfigKey.LIBRARY_WATCH_ENABLED, value: true }],
   libraryWatchDisabled: [{ key: SystemConfigKey.LIBRARY_WATCH_ENABLED, value: false }],
 };