Improve Request Community space feature

[kpachhai]

Utilize the new API endpionts on profile api service to fetch metadata for NFTs to check the validity and if there is no result, then let the user know with a notification message saying this NFT collection cannot be found in whatever network. Then, ask the user again if they would still like to request for it and if so, ask the user to give their email address so we can get in contact with them to get the collection added.