fix: clear desktop web cache on first version launch (#1184)

packages/desktop/app/AppState.ts

@@ -0,0 +1,52 @@
+import { action, makeObservable, observable } from 'mobx'
+import { MessageType } from '../test/TestIpcMessage'
+import { Store } from './javascripts/Main/Store/Store'
+import { StoreKeys } from './javascripts/Main/Store/StoreKeys'
+import { Paths, Urls } from './javascripts/Main/Types/Paths'
+import { UpdateState } from './javascripts/Main/UpdateManager'
+import { handleTestMessage } from './javascripts/Main/Utils/Testing'
+import { isTesting } from './javascripts/Main/Utils/Utils'
+import { WindowState } from './javascripts/Main/Window'
+
+export class AppState {
+  readonly version: string
+  readonly store: Store
+  readonly startUrl = Urls.indexHtml
+  readonly isPrimaryInstance: boolean
+  public willQuitApp = false
+  public lastBackupDate: number | null = null
+  public windowState?: WindowState
+  public deepLinkUrl?: string
+  public readonly updates: UpdateState
+  public lastRunVersion: string
+
+  constructor(app: Electron.App) {
+    this.version = app.getVersion()
+    this.store = new Store(Paths.userDataDir)
+    this.isPrimaryInstance = app.requestSingleInstanceLock()
+
+    this.lastRunVersion = this.store.get(StoreKeys.LastRunVersion) || 'unknown'
+    this.store.set(StoreKeys.LastRunVersion, this.version)
+
+    makeObservable(this, {
+      lastBackupDate: observable,
+      setBackupCreationDate: action,
+    })
+
+    this.updates = new UpdateState(this)
+
+    if (isTesting()) {
+      handleTestMessage(MessageType.AppStateCall, (method, ...args) => {
+        ;(this as any)[method](...args)
+      })
+    }
+  }
+
+  public isRunningVersionForFirstTime(): boolean {
+    return this.lastRunVersion !== this.version
+  }
+
+  setBackupCreationDate(date: number | null): void {
+    this.lastBackupDate = date
+  }
+}