Additions of some finishes

Shared/MainLayout.razor

@@ -1,9 +1,8 @@
 @inherits LayoutComponentBase
 @using MudBlazor
-<MudThemeProvider/>
+<MudThemeProvider IsDarkMode="true"/>
 <MudDialogProvider/>
 <MudSnackbarProvider/>
-
 <div class="page">
     <div class="sidebar">
         <NavMenu />

Shared/MainLayout.razor.css

@@ -9,7 +9,8 @@ main {
 }
 
 .sidebar {
-    background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
+    background-image: linear-gradient(180deg, rgb(0, 0, 0) 0%, rgb(80, 80, 80) 70%);
+    /*background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);*/
 }
 
 .top-row {

Shared/NavMenu.razor

@@ -1,6 +1,6 @@
 <div class="top-row ps-3 navbar navbar-dark">
     <div class="container-fluid">
-        <a class="navbar-brand" href="">Application-Administration</a>
+        <a class="navbar-brand" href="">IQBall-Administration</a>
         <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
             <span class="navbar-toggler-icon"></span>
         </button>