[#65] MailLogWindow: Fix initial loading

Elwig/Windows/MailLogWindow.xaml

@@ -3,7 +3,8 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:local="clr-namespace:Elwig.Windows"
-        Title="Ausgangs-Protokoll - Rundschreiben - Elwig" Height="600" Width="1000">
+        Title="Ausgangs-Protokoll - Rundschreiben - Elwig" Height="600" Width="1000"
+        Loaded="Window_Loaded">
     <Grid>
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width="3*"/>

Elwig/Windows/MailLogWindow.xaml.cs

@@ -2,6 +2,7 @@ using Elwig.Helpers;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using System.Windows;
 
 namespace Elwig.Windows {
@@ -18,8 +19,16 @@ namespace Elwig.Windows {
             FilterInput.TextChanged -= FilterInput_TextChanged;
         }
 
+        private async void Window_Loaded(object sender, RoutedEventArgs evt) {
+            await Load();
+        }
+
         private async void TimeSpanInput_SelectionChanged(object sender, RoutedEventArgs evt) {
             if (!IsLoaded) return;
+            await Load();
+        }
+
+        private async Task Load() {
             DateTime? fromDate = DateTime.Now;
             if (TimeSpanInput.SelectedIndex == 0) {
                 fromDate = fromDate.Value.AddDays(-7);