messageActionSheet: Give callbacks uniform names; no "doMute...".
messageActionSheet: Give callbacks uniform names; no "doMute...".

This naming is preferable for two reasons:

 * It gives all the callbacks names of the same form, and which
   match our identifiers for them;

 * It gets rid of a contrast "frob" vs. "doFrob".  There is no
   semantic distinction at all between those English forms, which
   makes it impossible to guess, and hard to remember, which side of
   such a contrast is supposed to be which.  For this reason a
   prefix "do" is rarely appropriate for any name in a program.
   (One exception is when the prefixed term is ambiguously a verb
   or something else, as in "doNarrow" vs "narrow".)

   Instead, say "apiFrob" vs. "frob", giving one side a prefix
   with a definite meaning.

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