[ UI ] QAN for Postgresql attempts to connect to a database with the same name as the username

# pmm-admin add postgresql pgsql --username=pmm_user --password=Admin123 127.0.0.1:5432
PostgreSQL Service added.
Service ID : /service_id/a783e239-70c1-4780-941b-3d5c6e0d0373
Service name: pgsql

postgres=# CREATE DATABASE dbmonitoring;
CREATE DATABASE
postgres-# \l
 List of databases
 Name | Owner | Encoding | Collate | Ctype | Access privileges 
--------------+----------+----------+---------+-------+-----------------------
 dbmonitoring | postgres | UTF8 | en_IN | en_IN | 
 postgres | postgres | UTF8 | en_IN | en_IN | 
 template0 | postgres | UTF8 | en_IN | en_IN | =c/postgres +
 | | | | | postgres=CTc/postgres
 template1 | postgres | UTF8 | en_IN | en_IN | =c/postgres +
 | | | | | postgres=CTc/postgres
(4 rows)
postgres-# \c dbmonitoring
psql (13.1 (Ubuntu 13.1-1.pgdg18.04+1), server 12.5 (Ubuntu 2:12.5-2.bionic))
You are now connected to database "dbmonitoring" as user "postgres".

dbmonitoring=# CREATE TABLE links (
id SERIAL PRIMARY KEY,
url VARCHAR(255) NOT NULL,
name VARCHAR(255) NOT NULL,
description VARCHAR (255),
 last_update DATE
);
CREATE TABLE
dbmonitoring=# INSERT INTO links (url, name)
dbmonitoring-# VALUES('https://www.postgresqltutorial.com','PostgreSQL Tutorial');
INSERT 0 1
dbmonitoring=#