Remove default Blazor stuff

Start/Client/Shared/MainLayout.razor

@@ -1,10 +1,6 @@
 @inherits LayoutComponentBase
 
 <div class="page">
-    <div class="sidebar">
-        <NavMenu />
-    </div>
-
     <div class="main">
         <div class="top-row px-4 auth">
             <LoginDisplay />

Start/Client/Shared/SurveyPrompt.razor

@@ -1,16 +0,0 @@
-<div class="alert alert-secondary mt-4" role="alert">
-    <span class="oi oi-pencil mr-2" aria-hidden="true"></span>
-    <strong>@Title</strong>
-
-    <span class="text-nowrap">
-        Please take our
-        <a target="_blank" class="font-weight-bold" href="https://go.microsoft.com/fwlink/?linkid=2137916">brief survey</a>
-    </span>
-    and tell us what you think.
-</div>
-
-@code {
-    // Demonstrates how a parent component can supply parameters
-    [Parameter]
-    public string? Title { get; set; }
-}