[backend/core] Fix erroneous non-updating security configuration references

Iceshrimp.Backend/Controllers/Web/InstanceController.cs

@@ -23,7 +23,7 @@ public class InstanceController(
 	DatabaseContext db,
 	UserRenderer userRenderer,
 	IOptions<Config.InstanceSection> instanceConfig,
-	IOptions<Config.SecuritySection> securityConfig,
+	IOptionsSnapshot<Config.SecuritySection> securityConfig,
 	MetaService meta,
 	InstanceService instanceSvc
 ) : ControllerBase

Iceshrimp.Backend/Pages/Shared/ErrorPage.cshtml

@@ -5,7 +5,7 @@
 @using Microsoft.Extensions.Options
 @model ErrorPageModel
 @inject IOptions<Config.InstanceSection>         Instance
-@inject IOptions<Config.SecuritySection>         Security
+@inject IOptionsSnapshot<Config.SecuritySection> Security
 @{
     // Not meant for direct consumption, use with RazorViewRenderService.
     Layout = null;