Change Tags and Narrators to work the same as Genres on the Match page.

[BrianCArnold]

Used the multi-select behavior that exists on Genres in Match to work on Narrators and Tags.

[advplyr]

Thanks! I fixed an existing bug with the MultiSelect I found in testing.
I was going to update the Author input to also use the MultiSelect but it is shared with the podcasts which store authors as a string and I didn't want to spend on the time on that right now.

[BrianCArnold]

That's exactly why authors isn't also fixed in this PR