Feat: add hashed/encoded username to ensure uniqueness

[avivash]

Description

Replacing all instances of the username that is passed to webnative with a hashed/base32 encoded version that has a # and DID appended to it to ensure uniqueness amongst usernames

Link to issue

https://github.com/webnative-examples/webnative-app-template/issues/92

Type of change

• [x] New feature (non-breaking change that adds functionality)

Screenshots/Screencaps

https://www.loom.com/share/c02bfe4d1154466b9f7a35d65ad894d1

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Name	Status	Preview	Updated
webnative-template	✅ Ready (Inspect)	Visit Preview	Dec 6, 2022 at 8:27PM (UTC)

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