Fixed some bindings that should have been two-way

PRS.Avalonia/PRS.Avalonia/Modules/MyHR/MyHRQualifications/MyHRQualificationsEditView.axaml

@@ -14,12 +14,12 @@
         <TabItem Header="Info">
             <Grid RowDefinitions="Auto,Auto,Auto">
                 <components:DateSelectorButton Grid.Row="0"
-                                               Date="{Binding Shell.Qualified}"
+                                               Date="{Binding Shell.Qualified, Mode=TwoWay}"
                                                Prefix="Start:"
                                                Prompt="Select Start Date"
                                                DateChanged="Qualified_OnChanged"/>
                 <components:DateSelectorButton Grid.Row="1"
-                                               Date="{Binding Shell.Expiry}"
+                                               Date="{Binding Shell.Expiry, Mode=TwoWay}"
                                                Prefix="Expiry:"
                                                Prompt="Select Expiry Date"
                                                DateChanged="Expiry_OnChanged"/>

PRS.Avalonia/PRS.Avalonia/Modules/MyTasks/TaskEditView.axaml

@@ -33,7 +33,7 @@
                         Grid.Row="3"/>
                 <components:DateSelectorButton Prefix="Due:"
                                                Format="dd MMM yy"
-                                               Date="{Binding Shell.DueDate}"
+                                               Date="{Binding Shell.DueDate, Mode=TwoWay}"
                                                Grid.Row="4"
                                                DateChanged="DateSelector_DateChanged"/>
                 <Button Classes="Standard"