messageActionSheet: Fix accidentally-changed messages.
messageActionSheet: Fix accidentally-changed messages.

Looks like when moving this bit of metadata the other day in commit
5f84ca476, I changed a couple of these messages to new values.  I'm
not sure the current values are the absolute best possible, but any
change should be explicit, not mixed in with a refactor like that.
Change them back.

vishwesh3/zulip-mobile,vishwesh3/zulip-mobile,vishwesh3/zulip-mobile,vishwesh3/zulip-mobile