Improve web calendar layout and shared sync state

api/OtthonApi/Program.cs

@@ -12,6 +12,19 @@ using Microsoft.EntityFrameworkCore;
 var builder = WebApplication.CreateBuilder(args);
 
 builder.Services.AddOpenApi();
+builder.Services.AddCors(options =>
+{
+    options.AddPolicy("CalendarWeb", policy =>
+    {
+        policy
+            .WithOrigins(
+                "https://calendar.a-web.hu",
+                "http://localhost:5000",
+                "http://localhost:8080")
+            .AllowAnyHeader()
+            .AllowAnyMethod();
+    });
+});
 builder.Services.AddHttpClient("open-food-facts", client =>
 {
     client.BaseAddress = new Uri("https://world.openfoodfacts.org/");
@@ -52,6 +65,7 @@ if (app.Environment.IsDevelopment())
     app.MapOpenApi();
 }
 
+app.UseCors("CalendarWeb");
 app.UseAuthentication();
 app.UseAuthorization();