chore: updates more rfcs

[SWvheerden]

Description

Removes maintainer field as many of the listed maintainers are not with Tari anymore,
Fixes up wrong and missing fields.
Does not update to tips yet

[gemini-code-assist]

Code Review

This pull request updates several Tari RFC documents, notably removing maintainer metadata, renaming 'Tari' to 'MinoTari' in wallet contexts, updating deep link conventions, removing the Store and Forward (SAF) protocol, and expanding the mining proof-of-work specification to four algorithms with adjusted target times. The review feedback highlights a mathematical contradiction in the mining target block times (which should be 200 seconds instead of 120 seconds), suggests a minor grammatical correction ('an RxM'), and points out leftover SAF references in the peer-to-peer messaging protocol that need to be cleaned up for consistency.

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