Serverless function UI (#6388)

https://www.figma.com/design/xt8O9mFeLl46C5InWwoMrN/Twenty?node-id=36235-120877

Did not do the file manager part. A Function is defined using one unique
file at the moment

Feature protected by featureFlag `IS_FUNCTION_SETTINGS_ENABLED`

## Demo


https://github.com/user-attachments/assets/0acb8291-47b4-4521-a6fa-a88b9198609b

packages/twenty-front/src/modules/settings/utils/getSettingsPagePath.ts

@@ -2,6 +2,7 @@ import { SettingsPath } from '@/types/SettingsPath';
 import { isDefined } from '~/utils/isDefined';
 
 type PathParams = {
+  id?: string;
   objectSlug?: string;
 };
 
@@ -15,5 +16,9 @@ export const getSettingsPagePath = <Path extends SettingsPath>(
     resultPath = resultPath.replace(':objectSlug', params.objectSlug);
   }
 
+  if (isDefined(params?.id)) {
+    resultPath = `${resultPath}/${params?.id}`;
+  }
+
   return resultPath;
 };