appointments show wrong time in different time zones due to daylight time changes.

The issue can be reproduced in scenarios:

- For US time zone 14th of march: If I click an empty slot, I have a popup that tells the time that is clicked. I click on the 9 AM slot and it says I'm clicking on "10:00". This only happens on 3/14/2021

- For European countries time zone: on 28th or march 2021 when is the daylight saving time

While in DayView (or any other appropriate view), allow for appointments to be draggable to another time slot for rescheduling. 

When changing the view mode from Day to MultiDay or opposite, and having an AppointmentTemplateSelector, exception is thrown on iOS. 

workaround: 

Return the default template when platform is iOS.

if(Device.RuntimePlatform == Device.iOS)

            {

                return default;

            }

When adding a RadCalendar with Day ViewMode in a TabView and switching tabs, null ref exception is thrown. 

Workaround: Set TabView.IsContentPreserved to True 

Currently there are areas in the MultiDayView that cannot be styled using the background color.  Provide an option to set a background color to the entire the MultiDayView:

when using DayViewSettings and applying AppointmentTemplate, the template is not applied, the default one is applied. 

Workaround: apply AppointmentTemeplate to MultiDayViewSettings for UWP.

When changing the device orientation to a landscape mode, the all-day timeline cell does not resize as expected. The all day text moves the the date cell.

white/dark space is shown on the top of the agenda view. This space hovers some of the vents and dates from the agenda. 
You need to scroll through the agenda and the white/dark space disappears. 

Provide a new view similar to Day/MultiDay View with horizontal timeline - in this way it would be easier to accommodate more appointments for a certain timeslot. 

This timeline would be scrollable vertically to fit as many calendar events as needed, and horizontally to fit all time frames. 

Provide a way to remove the appointment time display in Calendar AgendaView both on Android & iOS - on iOS there is a separate column for appointments' time that should be removed.