Fix the itch update cache reader for Kotlin 2.1 and keep symlinked staged entries out of the merge recursion

app/src/main/java/com/droiddeck/launcher/stores/itch/ItchStaging.kt

@@ -10,7 +10,7 @@ internal object ItchStaging {
         for (child in from.listFiles().orEmpty()) {
             val dest = File(to, child.name)
             val destPath = dest.toPath()
-            if (child.isDirectory && dest.isDirectory && !Files.isSymbolicLink(destPath)) {
+            if (child.isDirectory && !Files.isSymbolicLink(child.toPath()) && dest.isDirectory && !Files.isSymbolicLink(destPath)) {
                 merge(child, dest)
                 continue
             }

app/src/main/java/com/droiddeck/launcher/stores/itch/ItchUpdates.kt

@@ -57,7 +57,8 @@ internal object ItchUpdates {
         val out = LinkedHashMap<String, ItchUpdate>()
         for (key in json.keys()) {
             val u = json.optJSONObject(key) ?: continue
-            val id = u.optString("uploadId").ifBlank { continue }
+            val id = u.optString("uploadId")
+            if (id.isBlank()) continue
             out[key] = ItchUpdate(id, u.optString("updatedAt"), u.optString("filename"), u.optBoolean("replaced"))
         }
         return out