Replace IC.Types.EntityId with candid’s Principal type

[nomeata]

mostly boring, but good practice to get used to the code base and build system.

[sivagangapuram]

would like to work on this issue if you guide me some more about it as i am a beginner to opensource contricution

[nomeata]

Hi @sivagangapuram, thanks for your offer. I am not sure if we can accept external contributions at the moment, let alone those that need guidance; the “good first issue” label is more meant internally.