Update Plugin API (and plugins)

Fix issue with persisting new games

plugins/igdb/src/main/kotlin/de/grimsi/gameyfin/plugins/igdb/IgdbPlugin.kt

@@ -122,6 +122,7 @@ class IgdbPlugin(wrapper: PluginWrapper) : GameyfinPlugin(wrapper) {
             return GameMetadata(
                 title = game.name,
                 description = game.summary,
+                coverUrl = Mapper.cover(game.cover),
                 release = Instant.ofEpochSecond(game.firstReleaseDate.seconds),
                 userRating = game.rating.toInt(),
                 criticRating = game.aggregatedRating.toInt(),

plugins/igdb/src/main/kotlin/de/grimsi/gameyfin/plugins/igdb/Mapper.kt

@@ -95,7 +95,11 @@ class Mapper {
         }
 
         fun screenshot(screenshot: proto.Screenshot): URL {
-            return URI(imageBuilder(screenshot.imageId, ImageSize.SCREENSHOT_HUGE, ImageType.PNG)).toURL()
+            return URI(imageBuilder(screenshot.imageId, ImageSize.FHD, ImageType.PNG)).toURL()
+        }
+
+        fun cover(cover: proto.Cover): URL {
+            return URI(imageBuilder(cover.imageId, ImageSize.COVER_BIG, ImageType.PNG)).toURL()
         }
 
         fun video(video: proto.GameVideo): URL {

plugins/steam/src/main/kotlin/de/grimsi/gameyfin/plugins/steam/SteamPlugin.kt

@@ -18,6 +18,7 @@ import org.pf4j.Extension
 import org.pf4j.PluginWrapper
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
+import java.net.URI
 import java.net.URLEncoder
 import java.nio.charset.StandardCharsets
 import java.time.Instant
@@ -109,6 +110,7 @@ class SteamPlugin(wrapper: PluginWrapper) : GameyfinPlugin(wrapper) {
             val metadata = GameMetadata(
                 title = string(game, "name"),
                 description = string(game, "detailed_description"),
+                coverUrl = URI("").toURL(),
                 release = date(game["release_date"]?.jsonObject["date"]?.jsonPrimitive?.content!!),
                 userRating = 0,
                 criticRating = 0,