fix app.js
add delete category code
move item persistence code to items.js
move others itemspersistence code to items.js
move category persistence code to categories.js
format code
change categories to hash
delete useless code
update delete
update categories.js
change object to array
update categories.js
update catagory with category edit complete
updata catagories.js
change items storage format
delete useless code
new customItems.js file
add customItems route
rename file
update item delete code