hub: fix tooltip when download complete

The tooltip was still showing "Downloading... 100%" after downloading
was complete instead of returning to the normal tooltip.

src/hub/reducers.ts

@@ -120,7 +120,7 @@ const downloadProgress: Reducer<number | null> = (state = null, action) => {
     }
 
     if (didFinishDownload.matches(action)) {
-        return 1;
+        return null;
     }
 
     if (didFailToFinishDownload.matches(action)) {

src/hub/sagas.ts

@@ -266,6 +266,8 @@ function* handleDownloadAndRun(action: ReturnType<typeof downloadAndRun>): Gener
             }
         }
 
+        didProgressDownload(1);
+
         const writeUserMetaMessageId2 = nextMessageId();
 
         yield* put(