text: export 	const cardFilter = (state,action) =>{
  	console.log(state);
  	switch(action.type){
  		case 'FILTER_CARDS':
  			return action.data;
  		default:
  			return state || '';
  	}
  }
  
  export const showBack=(state,action) =>{
  	switch(action.type){
  		case 'SHOW_BACK':
  			return action.data || false;
  		default:
  			return state || false;
  
  	}
  }