fix some issues and optimized login

Server Dashboard/Controls/LoadingIndicator/LoadingIndicator.xaml

@@ -0,0 +1,76 @@
+<UserControl x:Class="Server_Dashboard.Controls.LoadingIndicator"
+             x:Name="control"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Server_Dashboard.Controls"
+             mc:Ignorable="d" 
+             >
+    <Grid DataContext="{Binding RelativeSource={RelativeSource Self}}">
+        <Path 
+            Stroke="Transparent"
+            StrokeThickness=".5"
+            RenderTransformOrigin=".5,.5"
+            Width="60"
+            Height="60"
+            >
+            <Path.Effect>
+                <DropShadowEffect BlurRadius="5" ShadowDepth="0" Opacity="1" Color="#B388FF"/>
+            </Path.Effect>
+            <Path.Data>
+                <CombinedGeometry 
+                    GeometryCombineMode="Xor"
+                    >
+                    <CombinedGeometry.Geometry1>
+                        <EllipseGeometry 
+                            RadiusX="30"
+                            RadiusY="30"
+                            Center="30,30"
+                            />
+                    </CombinedGeometry.Geometry1>
+                    <CombinedGeometry.Geometry2>
+                        <EllipseGeometry 
+                            RadiusX="24"
+                            RadiusY="24"
+                            Center="30,30"
+                            />
+                    </CombinedGeometry.Geometry2>
+                </CombinedGeometry>
+            </Path.Data>
+            <Path.Fill>
+                <LinearGradientBrush
+                    StartPoint="0,0"
+                    EndPoint="1,1"
+                    >
+                    <GradientStop 
+                        Color="#B388FF" Offset="0"
+                        />
+                    <GradientStop 
+                        Color="#A7FFEB" Offset="1"
+                        />
+                </LinearGradientBrush>
+            </Path.Fill>
+            <Path.RenderTransform>
+                <RotateTransform/>
+                <!--This is necessary for the animation not to stop-->
+            </Path.RenderTransform>
+            <Path.Triggers>
+                <EventTrigger
+                    RoutedEvent="Loaded"
+                    >
+                    <BeginStoryboard>
+                        <Storyboard>
+                            <DoubleAnimation 
+                                Storyboard.TargetProperty="(Rectangle.RenderTransform).(RotateTransform.Angle)"
+                                To="360"
+                                Duration="0:0:.8"
+                                RepeatBehavior="Forever"
+                                />
+                        </Storyboard>
+                    </BeginStoryboard>
+                </EventTrigger>
+            </Path.Triggers>
+        </Path>
+    </Grid>
+</UserControl>