After the split into multiple pg_stat_monitor--1.0.XX.sql.in sql files,
where XX is the PostgreSQL version, it was forgotten to add the errors
view to the relevant files, this commit fixes that.
Updated sql files (pg_stat_monitor_settings view).
Using right variable name and level checking on pgss_store:
key.toplevel = ((exec_nested_level + plan_nested_level) == 0);
Ibrar Ahmed
Diego Fronza