MERC-998 update default product gallery image size
MERC-998 update default product gallery image size

ovsokolov/dashconnect-bc,mcampa/cornerstone,bc-annavu/stencil,juancho1/bauhaus,aaronrodier84/rouxbrands,PeteyRev/ud-revamp,ovsokolov/dashconnect-bc,bigcommerce/stencil,PeteyRev/ud-revamp,caras-ey/BST,rho1140/cornerstone,aaronrodier84/flukerfarms,PeteyRev/ud-revamp,juancho1/bauhaus,juancho1/bauhaus,aaronrodier84/rouxbrands,ovsokolov/dashconnect-bc,aaronrodier84/flukerfarms,aaronrodier84/flukerfarms,aaronrodier84/rouxbrands,rho1140/cornerstone,PascalZajac/cornerstone,PascalZajac/cornerstone,bigcommerce/stencil,rho1140/cornerstone,mcampa/cornerstone,mcampa/cornerstone,caras-ey/BST,bigcommerce/stencil,caras-ey/BST,bc-annavu/stencil,bc-annavu/stencil,PascalZajac/cornerstone