Release 2.3.0 (#4412)

- move user-preferences to edit submenu
- unify user preferences with other forms
- use light fieldset for all user-edit-forms
- support offcanvas elements
- allow to dynamically inject toolbar buttons (via plugins)
- use interface for formatting dates
- improve docker issue template
- bump version and composer packages

phpstan.neon

@@ -2051,11 +2051,6 @@ parameters:
             count: 1
             path: src/Export/Base/HtmlRenderer.php
 
-        -
-            message: "#^Cannot call method getId\\(\\) on App\\\\Entity\\\\Activity\\|null\\.$#"
-            count: 1
-            path: src/Export/Base/HtmlRenderer.php
-
         -
             message: "#^Cannot call method getId\\(\\) on App\\\\Entity\\\\Customer\\|null\\.$#"
             count: 5
@@ -2116,11 +2111,6 @@ parameters:
             count: 1
             path: src/Export/Base/PDFRenderer.php
 
-        -
-            message: "#^Cannot call method getId\\(\\) on App\\\\Entity\\\\Activity\\|null\\.$#"
-            count: 1
-            path: src/Export/Base/PDFRenderer.php
-
         -
             message: "#^Cannot call method getId\\(\\) on App\\\\Entity\\\\Customer\\|null\\.$#"
             count: 5