Show categories on product page

[henriquecbuss]

What issue does this PR close

Closes #817

Changes Proposed ( a list of new changes introduced by this PR)

• Show categories as tags in the product page

How to test ( a list of instructions on how to test this PR)

• Go to a product that has categories, and check the tags. They should only show up if you're logged in
• Go to a product that doesn't have categories, and check that it still looks ok

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[juramos-2020]

Testei no mobile e desktop e tudo funcionando como o esperado. Arrasou Henrique 😍🤟🧞✅