Increase type specitifity in notification handler

src/lib/server/notifications/handler.ts

 import { db } from "$lib/server/database";
 import { ChannelType } from "./channelTypes";
-import type { HandlerReturnType, NotificationChannel, NotificationData, NotificationType, PossibleNotificationType } from "../../notifications/types";
+import type { HandlerReturnError, HandlerReturnIgnored, HandlerReturnType, NotificationChannel, NotificationData, NotificationType, PossibleNotificationType } from "../../notifications/types";
 
 export async function sendNotification<T extends PossibleNotificationType>(user: { id: number, notificationChannels: NotificationChannel[] | undefined } | number, type: NotificationType<T>, data: NotificationData<T>): Promise<HandlerReturnType[]>{
 	let notificationChannels: NotificationChannel[];
@@ -23,7 +23,7 @@ export async function sendNotification<T extends PossibleNotificationType>(user:
 								status: "error",
 								channel,
 								error: err
-							} as HandlerReturnType;
+							} as HandlerReturnError;
 						});
 			}
 			case ChannelType.WEBHOOK.key: {
@@ -33,7 +33,7 @@ export async function sendNotification<T extends PossibleNotificationType>(user:
 								status: "error",
 								channel,
 								error: err
-							} as HandlerReturnType;
+							} as HandlerReturnError;
 						});
 			}
 			default: {
@@ -41,7 +41,7 @@ export async function sendNotification<T extends PossibleNotificationType>(user:
 				return {
 					status: "ignored",
 					channel
-				} as HandlerReturnType;
+				} as HandlerReturnIgnored;
 			}
 		};
 	}));