Added user photo caching

src/Program.cs

@@ -102,11 +102,20 @@ app.UseStaticFiles(new StaticFileOptions
                     Public = true,
                     MaxAge = TimeSpan.FromDays(365)
                 };
+        } else if (requestPath.Contains("UserPhoto"))
+        {
+            ctx.Context.Response.GetTypedHeaders().CacheControl =
+                new Microsoft.Net.Http.Headers.CacheControlHeaderValue()
+                {
+                    Public = true,
+                    MaxAge = TimeSpan.FromMinutes(5)
+                };
         }
     }
 });
 app.UseRouting();
 app.UseAuthorization();
+app.UseResponseCaching();
 app.UseResponseCompression();
 
 string[] supportedCultures = ["de", "en"];