moving the city/ item list from a hard coded HTML file to database

[nadavshoshan]

since we want to avoid typo mistakes by our friend on their items requests we want to let them choose from a fixed list

now, for testing, I hardcoded a list of cities and items.

@rotem-benzvi , after we will define the parameters for the gatherer component we will build a database for items and cities which we want to support.

[nadavshoshan]

I used Enum to limit the option of items/region

that has solved the problem

[liorsicd]

great job!!