fix: use return value of importSelfKeys instead of ImexProgress event

This makes the code similar to the export code.

Without this fix the toast "Secret keys imported from ..."
is not displayed when I tested, probably due
to the race condition between getting the ImexProgress event
and removing the handler.

CHANGELOG.md

@@ -7,6 +7,7 @@
 ### Changed
 
 ### Fixed
+- Display the toast after successful key import.
 
 
 <a id="1_40_3"></a>

src/renderer/components/dialogs/Settings-ManageKeys.tsx

@@ -5,7 +5,6 @@ import type { OpenDialogOptions } from 'electron'
 import { runtime } from '../../runtime'
 import { BackendRemote } from '../../backend-com'
 import { selectedAccountId } from '../../ScreenController'
-import { DcEventType } from '@deltachat/jsonrpc-client'
 
 async function onKeysImport() {
   const tx = window.static_translate
@@ -25,24 +24,17 @@ async function onKeysImport() {
     message: tx('pref_managekeys_import_explain', filename),
     confirmLabel: tx('yes'),
     cancelLabel: tx('no'),
-    cb: (yes: boolean) => {
+    cb: async (yes: boolean) => {
       if (!yes) {
         return
       }
       const text = tx('pref_managekeys_secret_keys_imported_from_x', filename)
-      const onImexProgress = ({ progress }: DcEventType<'ImexProgress'>) => {
-        if (progress !== 1000) {
-          return
-        }
-        window.__userFeedback({ type: 'success', text })
-      }
-      const emitter = BackendRemote.getContextEvents(selectedAccountId())
-      emitter.on('ImexProgress', onImexProgress)
-      BackendRemote.rpc
-        .importSelfKeys(selectedAccountId(), filename, null)
-        .finally(() => {
-          emitter.off('ImexProgress', onImexProgress)
-        })
+      await BackendRemote.rpc.importSelfKeys(
+        selectedAccountId(),
+        filename,
+        null
+      )
+      window.__userFeedback({ type: 'success', text })
     },
   })
 }