Update to WinUI 2.6 (#1618)

* Update to WinUI 2.6

Co-authored-by: Han Zhang <zhangh@microsoft.com>
Co-authored-by: Kenny Guo <kennyguo@microsoft.com>

**Description of the changes:**
1. Update to WinUI 2.6 styles and controls #1606.
2. Add Mica Material #1611.
3. Add Settings page #596.
4. Fix Ctrl+E shortcuts in AoT mode #1590.

**How changes were validated:**
Passed build, UT/UI test and manually tested.

* Fixed the display issue in AOT mode (#1615)

* Fixed the display issue in AOT mode

* Get the OpenPaneLength from the resource

* Fix CalendarView style in DateCalculation of dark mode (#1616)

* Fix a style problem of Date Calculator, and clean some unused codes

* Remove some unused codes

* Disable Mica before close the window to resolve a crash (#1619)

* Bump internal package build number (#1621)

src/Calculator/Package.appxmanifest

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5" IgnorableNamespaces="uap uap5 mp">
     <Identity Name="Microsoft.WindowsCalculator.Dev" Publisher="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US" Version="0.0.1.0" />
     <mp:PhoneIdentity PhoneProductId="b58171c6-c70c-4266-a2e8-8f9c994f4456" PhonePublisherId="95d94207-0c7c-47ed-82db-d75c81153c35" />
@@ -8,7 +8,7 @@
         <Logo>Assets\CalculatorStoreLogo.png</Logo>
     </Properties>
     <Dependencies>
-        <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.17133.0" MaxVersionTested="10.0.18362.0" />
+        <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.17133.0" MaxVersionTested="10.0.22000.0" />
     </Dependencies>
     <Resources>
         <Resource Language="x-generate" />