Add staticwebapp.config.json for navigation fallback

Reformat .csproj and remove exclusion of config file. Add staticwebapp.config.json to enable navigation fallback for SPA routing, excluding framework, CSS, JS, and image assets.

Author: gvreddy04

BlazorExpress.ChartJS.Demo.WebAssembly/BlazorExpress.ChartJS.Demo.WebAssembly.csproj

@@ -1,16 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
 
   <PropertyGroup>
-	  <TargetFramework>net10.0</TargetFramework>
-	  <Nullable>enable</Nullable>
-	  <ImplicitUsings>enable</ImplicitUsings>
-	  <OverrideHtmlAssetPlaceholders>true</OverrideHtmlAssetPlaceholders>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <OverrideHtmlAssetPlaceholders>true</OverrideHtmlAssetPlaceholders>
   </PropertyGroup>
 
-  <ItemGroup>
-    <_ContentIncludedByDefault Remove="wwwroot\staticwebapp.config.json" />
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.0" PrivateAssets="all" />

wwwroot/staticwebapp.config.json

@@ -0,0 +1,6 @@
+{
+  "navigationFallback": {
+    "rewrite": "/index.html",
+    "exclude": ["/_framework/*", "/css/*", "/js/*", "*.{png,jpg,gif,ico,webp,svg}"]
+  }
+}