fixes #6936

Update db-dao.md

There is no queryRow! There must be queryOne in Yii2
am i right?!

Update guides pt-BR [ci skip]

[skip ci] Update db-query-builder.md

Переведен structure-modules.md

Переведен concept-events.md

Update yii.php [skip ci]

Docs guide ja update [ci skip]

Conflicts:
	docs/internals-ja/design-decisions.md

[skip ci] Fixed typo in ActiveField PHPDoc

Fixed typo in ActiveField PHPDoc

docs/guide-pt-BR/structure-extensions.md - translate [ci skip]

Translated messages in [[i18n\Formatter.php]]

Переведен tutorial-yii-integration.md

[skip ci] Update tutorial-i18n.md

Fixed: Wrong namespace in advanced app backend unit test classes #6919