MDEV-35693: Improve SHOW REPLICA STATUS column sizes

Resize SHOW REPLICA STATUS’s (more precisely, the `INFORMATION_SCHEMA`
table `SLAVE_STATUS`’s) columns to better match their possible values

Text columns that list an uncapped number of elements have expanded to
accept as many bytes as we could support in case of intentionally but
absurdly long lists. Particularly, the OG `Replicate_` ones were
incorrectly typed as singlular `Name()`s during MDEV-33526.

In response to `‘MAX_SLAVE_ERRMSG’ was not declared in this scope` in
Embedded builds, a new `#ifdef HAVE_REPLICATION` guard wraps
`slave_status_info` to skip this unused data in Replication-less builds.

Reviewed-by: Brandon Nesterenko <brandon.nesterenko@mariadb.com>

mysql-test/main/information_schema.result

@@ -1341,7 +1341,7 @@ table_schema='information_schema' and
 group by column_type order by num;
 column_type	group_concat(table_schema, '.', table_name)	num
 varchar(7)	information_schema.ROUTINES,information_schema.VIEWS,information_schema.SLAVE_STATUS	3
-varchar(20)	information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING,information_schema.SLAVE_STATUS	10
+varchar(20)	information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING	9
 create table t1(f1 char(1) not null, f2 char(9) not null)
 default character set utf8;
 select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from