removed unused files and added homepage

Author: felixindrawan

hello-world/blazor/hello-world-blazor/BlazorApp1/Layout/NavMenu.razor

@@ -1,6 +1,6 @@
 <div class="top-row ps-3 navbar navbar-dark">
     <div class="container-fluid">
-        <a class="navbar-brand" href="">BlazorApp1</a>
+        <a class="navbar-brand" href="">Dynamsoft Barcode Reader - Blazor</a>
         <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
             <span class="navbar-toggler-icon"></span>
         </button>
@@ -14,16 +14,6 @@
                 <span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
             </NavLink>
         </div>
-        <div class="nav-item px-3">
-            <NavLink class="nav-link" href="counter">
-                <span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Counter
-            </NavLink>
-        </div>
-        <div class="nav-item px-3">
-            <NavLink class="nav-link" href="weather">
-                <span class="bi bi-list-nested-nav-menu" aria-hidden="true"></span> Weather
-            </NavLink>
-        </div>
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="video" Match="NavLinkMatch.All">
                 <span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Decode Video

hello-world/blazor/hello-world-blazor/BlazorApp1/Pages/Counter.razor

@@ -2,6 +2,12 @@
 
 <PageTitle>Home</PageTitle>
 
-<h1>Hello, world!</h1>
+<h1>Dynamsoft Barcode Reader Sample - Hello World</h1>
+Read barcodes from camera and images in a Blazor application!
+<br />
+<br />
+<h2> Support </h2>
 
-Welcome to your new app.
+If you have any questions, feel free to <a
+  href="https://www.dynamsoft.com/company/contact?utm_source=sampleBlazor">contact Dynamsoft
+  support</a>.