Disable PSR naming for linter by default

[tuqqu]

📌 What Does This PR Do?

The PR disables linter PSR naming conventions by default. To enable them user must explicitly enable them in the configuration

[linter]
trait-name = { psr = true }
interface-name = { psr = true }
class-name = { psr = true }

🔍 Context & Motivation

See #799

🛠️ Summary of Changes

• Changed default values

📂 Affected Areas

• Linter
• Formatter
• CLI
• Composer Plugin
• Dependencies
• Documentation
• Other (please specify):

🔗 Related Issues or PRs

Fixes #799

[azjezz]

Thanks @tuqqu !