Revert "Delete .DS_Store"

This reverts commit ae23d3633509a0bab473e9b7cd32fc5bf1e7f55c.
Revert "Revert "Delete .DS_Store""

This reverts commit 8f6137518f68ef8d4f9ca47e0240e346f753068f.
Interface for searching bar

Interface for searching bar
shopping cart back-end function for search page

Add a functional button in search page to add item in the shopping cart.
Merge pull request #1 from tshr2323/R3-Archer

R3 archer