Update Program.cs

Remove duplicate semicolon

Author: neman

src/WebUI/Program.cs

@@ -12,6 +12,7 @@
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {
+    app.UseDeveloperExceptionPage();
     app.UseMigrationsEndPoint();
 
     // Initialise and seed database
@@ -50,6 +51,6 @@
 
 app.MapRazorPages();
 
-app.MapFallbackToFile("index.html"); ;
+app.MapFallbackToFile("index.html");
 
-app.Run();
+app.Run();