URL Encoding issue in categories and tags

[corrie-sloot]

If a tag or category for an asset contains an ampersand (&), when creating links in the market, characters needs to be url encoded.

For example, in Rinkeby Test Network:
https://market.oceanprotocol.com/asset/did:op:46D82feFC506eDD1831c11EA91fA3149179c4465

The category is "Agriculture & Bio Engineering", but if you click on the category near the top, you are redirected to:
https://market.oceanprotocol.com/search?categories=Agriculture%20&%20Bio%20Engineering
instead of
https://market.oceanprotocol.com/search?categories=Agriculture%20%26%20Bio%20Engineering
leading to different results.

Same thing with the tags field.

Other characters may need to be encoded as well.