Extend Plugin API to return a list of covers and header images

Implement dedicated header image in GameView
Implement GameHeaderPicker

plugins/igdb/src/main/kotlin/org/gameyfin/plugins/metadata/igdb/IgdbPlugin.kt

@@ -190,7 +190,7 @@ class IgdbPlugin(wrapper: PluginWrapper) : ConfigurableGameyfinPlugin(wrapper) {
                 originalId = game.slug,
                 title = game.name,
                 description = game.summary,
-                coverUrl = Mapper.cover(game.cover),
+                coverUrls = Mapper.cover(game.cover)?.let { listOf(it) },
                 release = if (game.firstReleaseDate.seconds > 0) Instant.ofEpochSecond(game.firstReleaseDate.seconds) else null,
                 userRating = game.rating.toInt(),
                 criticRating = game.aggregatedRating.toInt(),

plugins/igdb/src/main/resources/MANIFEST.MF

@@ -1,6 +1,6 @@
-Plugin-Version: 1.0.0-beta1
+Plugin-Version: 1.0.0.beta2
 Plugin-Class: org.gameyfin.plugins.metadata.igdb.IgdbPlugin
-Plugin-Id: org.gameyfin.plugins.metadata.igdb.
+Plugin-Id: org.gameyfin.plugins.metadata.igdb
 Plugin-Name: IGDB Metadata
 Plugin-Description: Fetches metadata from IGDB.<br>
  Requires a Twitch account and IGDB API credentials.<br>