NetteDatabase loader does not support other DB Engines

[JanKalach]

• PostgreSQL: It strictly rejects backticks for identifiers. If double quotes aren't used (or if identifiers aren't left unquoted), the query will fail.
• SQL Server: This engine often requires a FROM clause even in scenarios where MySQL doesn't, and it frequently uses different syntax for aliases and literal handling.

\Contributte\Translation\Loaders\NetteDatabase(line: 37)

SELECT ? AS `id`, ? AS `locale`, ? AS `message` FROM ? WHERE ?

Backticks should be removed

SELECT ? AS id, ? AS locale, ? AS message FROM ? WHERE ?