final tasks

1.ftoiakse to random na emfanizete kai to onoma tou magaziou
2. ftoiakse to call button wste na pernei til to antistoixo magazi
3. ftoiakse tis times stis katigories wste na min emfanizotai arhs$20.00
4. fixed a bug otan den e3afanizotan to tvestatoria mazi me to button