`AppSettingsDialog` modal close button not reachable without title prop

[raimund-schluessler]

If the AppSettingsDialog has not title set, the modal close button is visible, but not clickable, since it's hidden behind app-settings__content. Simply remove the title prop in the docs, open the dialog and try to close it with the modal close button. @marcoambrosini Since you refactored this recently.