Reduce result download time by downloading results before task is complete

[nirizr]

Right now, #17 Implements two successive noticeable slow progress bar tasks:

1. Waiting for the task to complete on the remote server.
2. Downloading all match results.

It is possible, by combining the two client-side processes and running them simultaneously, to download at least most of the results while the task is being run.

[nirizr]

This could be improved even further by putting the task completion and results downloads progress bars inside the match results dialog, letting the user see the matches as they arrive, cancel when satisfied, not wait as long, etc...