Improve weekly hours form (#5528)

phpstan.neon

@@ -2010,7 +2010,7 @@ parameters:
 
         -
             message: "#^Cannot clone mixed\\.$#"
-            count: 2
+            count: 1
             path: src/Form/QuickEntryForm.php
 
         -
@@ -2838,21 +2838,6 @@ parameters:
             count: 1
             path: src/Form/Type/QuickEntryTimesheetType.php
 
-        -
-            message: "#^Cannot access offset 'activity' on mixed\\.$#"
-            count: 1
-            path: src/Form/Type/QuickEntryWeekType.php
-
-        -
-            message: "#^Cannot access offset 'project' on mixed\\.$#"
-            count: 1
-            path: src/Form/Type/QuickEntryWeekType.php
-
-        -
-            message: "#^Cannot clone mixed\\.$#"
-            count: 1
-            path: src/Form/Type/QuickEntryWeekType.php
-
         -
             message: "#^Method App\\\\Form\\\\Type\\\\SearchTermType\\:\\:buildForm\\(\\) has parameter \\$options with no value type specified in iterable type array\\.$#"
             count: 1