Fix ipfs:// prefix issue

[bogacyigitbasi]

Purpose

Ideally, the browser wallet should not rely on a gateway for IPFS (like https://ipfs.io). The right way is to host the metadata on ipfs:// only without giving any gateways on-chain. Cause when that gateway is down, then you cant access your token, it makes your data centralized in a way.
But when metadata is hosted on IPFS and a token is minted with only the prefix ipfs://Qmsomehash then BW validation checks fail. A ticket is created and when BW addresses this we may change it back, but at the moment this causes confusion in people

Changes

Its a fix for changing "ipfs://" to "https://ipfs.io/ipfs/QmHASH"

_Describe the changes that were needed.

Checklist

• My code follows the style of this project.
• The code compiles without warnings.
• I have performed a self-review of the changes.
• I have documented my code, in particular the intent of the
  hard-to-understand areas.
• (If necessary) I have updated the CHANGELOG.

CLA acceptance

_Remove if not applicable.

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