fix: update flavorparams live source naming

[pnts-se]

It's confusing to use the same name and systemName for livestream source and non-livestream source.

For instance, when doing KMC bulk-action download. Let's say we download a mixed bag of entries, livestream VODs and non-livestream media entries.

If we want the source, usually source with flavorParams id = 0 will be selected, since being at the top of the list. Downloading source from livestream vods will fail since it has flavorParams id = 32.

From a user perspective, you don't really know the sources have different flavorParams ids. Changing the name will make this obvious when reviewing flavors in KMC.