pgsql: Fix tab-completion after commit 790bf615ddba

Fix tab-completion after commit 790bf615ddba

I (Álvaro) broke tab-completion for GRANT .. ALL TABLES IN SCHEMA while
removing ALL from the publication syntax for schemas in the
aforementioned commit.  I also missed to update a bunch of
tab-completion rules for ALTER/CREATE PUBLICATION that match each
individual piece of ALL TABLES IN SCHEMA.  Repair those bugs.

While fixing up that commit, update a couple of outdated comments
related to the same change.

Backpatch to 15.

Author: Shi yu 
Reviewed-by: Peter Smith 
Discussion: https://postgr.es/m/OSZPR01MB6310FCE8609185A56344EED2FD559@OSZPR01MB6310.jpnprd01.prod.outlook.com

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/d8e6ae9f38984ca16dc0e18924cc26568bb75960

Modified Files
--------------
src/backend/replication/logical/tablesync.c |  4 ++--
src/bin/psql/tab-complete.c                 | 14 ++++++++------
src/test/subscription/t/031_column_list.pl  |  4 ++--
3 files changed, 12 insertions(+), 10 deletions(-)