* F3-370: integrate F3 dynamic manifest

* F3-370: make linter happy

* Set manifest sender identities

* Decode manifest sender peer ID from string before using it

Peer ID is of type string internally but the internal string
representation is not the same as the encoded string representation.
Therefore, the latter needs to be decoded and cannot be casted to the
former. Otherwise, it will represent a different ID.

* `make gen` the pain of my life

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Co-authored-by: Masih H. Derkani <m@derkani.org>