The server throws an error in case the source returns an empty chapter list. However, this is not an error and thus should not be handled as one
The error of the refresh mutation was never catched and shown
* Move menu components into new dir * Move chapter components into new dir * Extract menu helper functions * Move "SelectionFAB" to "collection" dir * Move debounce hook to global utils dir * Rename manga "hooks" to "useRefreshManga"