feat: introduce dependency injection framework (#4091)

* feat: migrate frontend notifications to dependency injection based notificaton manager

* fix: lint

* fix: issues

* fix: compile error + notif binding issue

* refactor: move org context to new DI setup

* feat: migrate app notifications to DI + frontend styling

* fix: sidebar issues

* fix: dont use delete in computed

* fix: import and prop issue

* refactor: move handleError to main notification manager class

* fix: lint & build

* fix: merge issues

* fix: lint issues

* fix: lint issues

---------

Signed-off-by: IMB11 <hendersoncal117@gmail.com>
Signed-off-by: Cal H. <hendersoncal117@gmail.com>

apps/app-frontend/src/providers/app-notifications.ts

@@ -0,0 +1,48 @@
+import {
+  AbstractWebNotificationManager,
+  type NotificationPanelLocation,
+  type WebNotification,
+} from '@modrinth/ui'
+import { ref, type Ref } from 'vue'
+
+export class AppNotificationManager extends AbstractWebNotificationManager {
+  private readonly state: Ref<WebNotification[]>
+  private readonly locationState: Ref<NotificationPanelLocation>
+
+  public constructor() {
+    super()
+    this.state = ref<WebNotification[]>([])
+    this.locationState = ref<NotificationPanelLocation>('right')
+  }
+
+  public getNotificationLocation(): NotificationPanelLocation {
+    return this.locationState.value
+  }
+
+  public setNotificationLocation(location: NotificationPanelLocation): void {
+    this.locationState.value = location
+  }
+
+  public getNotifications(): WebNotification[] {
+    return this.state.value
+  }
+
+  protected addNotificationToStorage(notification: WebNotification): void {
+    this.state.value.push(notification)
+  }
+
+  protected removeNotificationFromStorage(id: string | number): void {
+    const index = this.state.value.findIndex((n) => n.id === id)
+    if (index > -1) {
+      this.state.value.splice(index, 1)
+    }
+  }
+
+  protected removeNotificationFromStorageByIndex(index: number): void {
+    this.state.value.splice(index, 1)
+  }
+
+  protected clearAllNotificationsFromStorage(): void {
+    this.state.value.splice(0)
+  }
+}