[keyserver/lib] Restrict the derivedMessages parameter from being passed to rawMessageInfoFromServerDBRow

Summary:
This should hopefully be the last step of ENG-4849. Now that we have a function parseDerivedMessages defined only in the message specs that will need to support derived messages (SIDEBAR_SOURCE and TOGGLE_PIN), we want to update the callsites of rawMessageInfoFromServerDBRow in message-fetchers to only pass in derivedMessages if necessary. This means for rawMessageInfoFromServerDBRow to receive derivedMessages, the message spec must have a parseDerivedMessages function in it.

Regarding the callsites, although we definitely don't need to pass in derivedMessages for the multimedia spec (I checked that it's not destructred), just to have it resistant to change I've only excluded it if parseDerivedMessages is not defined. For all other message specs, the same logic applies as well.

Resolves https://linear.app/comm/issue/ENG-5320/restrict-the-derivedmessages-parameter-from-being-passed-to

Depends on D9542

Test Plan: Ran flow and manually tested the web app to confirm that there are no regressions with this change

Reviewers: atul, ginsu

Reviewed By: atul

Subscribers: ashoat, tomek, wyilio

Differential Revision: https://phab.comm.dev/D9543