supportedSyncNames

A set of which ids the provider can open with getLoadUrl() If the set contains SyncIdName.Imdb then getLoadUrl() can be started with an Imdb class which inherits from SyncId.

getLoadUrl() is then used to get page url based on that ID.

Example: "tt6723592" -> getLoadUrl(ImdbSyncId("tt6723592")) -> "mainUrl/imdb/tt6723592" -> load("mainUrl/imdb/tt6723592")

This is used to launch pages from personal lists or recommendations using IDs.