Merge pull request #55 from DMAGmbH/fix/wrapper-class

wrapper-class could be undefined

Merge pull request #54 from presprog/fix-config-fallback

Fix wrong array index for grid config fallback

Merge pull request #51 from DMAGmbH/fix/code-style

Code-Style

Merge pull request #47 from DMAGmbH/fix/php-8-warning

Add one more PHP 8 fix

Merge pull request #46 from DMAGmbH/fix/php-8-warning

key could be undefined

Merge pull request #45 from DMAGmbH/fix(/more-php-8-1-adjustments

More PHP 8.1 adjustments

Merge pull request #40 from DMAGmbH/develop

Develop

Merge pull request #39 from DMAGmbH/release-merge

Release v1.1.0

Merge pull request #36 from qzminski/bugfix/disable-sorting

Disable the sorting of column settings in the backend

Merge pull request #32 from markocupic/master

Fix some more undefined array key issues.