change "Width" to "MinWidth" in Calendar styles so days and months are not cut off when using a large(r) fontsize (#3693)

Author: corvinsz

src/MainDemo.Wpf/App.xaml

@@ -143,6 +143,11 @@
         <Setter Property="Height" Value="1" />
         <Setter Property="Fill" Value="{DynamicResource MaterialDesignDivider}" />
       </Style>
+
+      <Style TargetType="TextBlock" BasedOn="{StaticResource {x:Type TextBlock}}">
+        <Setter Property="FontSize" Value="30"/>
+      </Style>
+
     </ResourceDictionary>
   </Application.Resources>
 </Application>

src/MainDemo.Wpf/Properties/launchSettings.json

@@ -2,7 +2,7 @@
     "profiles": {
         "Demo App": {
             "commandName": "Project",
-            "commandLineArgs": "-p Home -t Inherit -f LeftToRight"
+            "commandLineArgs": "-p Picker -t Inherit -f LeftToRight"
         }
     }
 }

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.Calendar.xaml

@@ -154,15 +154,14 @@
       </Setter.Value>
     </Setter>
     <Setter Property="VerticalContentAlignment" Value="Center" />
-    <Setter Property="Width" Value="48" />
+    <Setter Property="MinWidth" Value="48" />
     <Setter Property="wpf:CalendarAssist.SelectionColor" Value="{DynamicResource MaterialDesign.Brush.Primary}" />
     <Setter Property="wpf:CalendarAssist.SelectionForegroundColor" Value="{DynamicResource MaterialDesign.Brush.Primary.Foreground}" />
   </Style>
 
   <Style x:Key="MaterialDesignCalendarDayButton" TargetType="{x:Type CalendarDayButton}">
     <Setter Property="Cursor" Value="Hand" />
     <Setter Property="FontSize" Value="12" />
-    <Setter Property="Height" Value="28" />
     <Setter Property="HorizontalContentAlignment" Value="Center" />
     <Setter Property="Margin" Value="2" />
     <Setter Property="MinHeight" Value="5" />
@@ -317,7 +316,8 @@
       </Setter.Value>
     </Setter>
     <Setter Property="VerticalContentAlignment" Value="Center" />
-    <Setter Property="Width" Value="28" />
+    <Setter Property="MinWidth" Value="28" />
+    <Setter Property="MinHeight" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}}"/>
     <Setter Property="wpf:CalendarAssist.SelectionColor" Value="{DynamicResource MaterialDesign.Brush.Primary}" />
     <Setter Property="wpf:CalendarAssist.SelectionForegroundColor" Value="{DynamicResource MaterialDesign.Brush.Primary.Foreground}" />
     <Style.Triggers>