Use player file, not directory, when checking for offline player data

When trying to fall back to offline player data in onlide mode,
we need to use the player file. This fixes a mistake during
update where 'file' was used, but the new code uses 'file1'
for the player file.

patches/server/0039-Check-online-mode-before-converting-and-renaming-pla.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Check online mode before converting and renaming player data
 
 
 diff --git a/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java b/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
-index 79222a04ef104bf2eed85684479384b7c350ea19..e11c8523e633d2a8e3cea7ecd54978b2958b9684 100644
+index 79222a04ef104bf2eed85684479384b7c350ea19..cd013567dd6224c86c0f1813d8a3d5fb7b8cabb5 100644
 --- a/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
 +++ b/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
 @@ -78,7 +78,7 @@ public class PlayerDataStorage {
@@ -13,7 +13,7 @@ index 79222a04ef104bf2eed85684479384b7c350ea19..e11c8523e633d2a8e3cea7ecd54978b2
          // Spigot Start
          boolean usingWrongFile = false;
 -        if ( !file1.exists() )
-+        if ( org.bukkit.Bukkit.getOnlineMode() && !file.exists() ) // Paper - Check online mode first
++        if ( org.bukkit.Bukkit.getOnlineMode() && !file1.exists() ) // Paper - Check online mode first
          {
              file1 = new File( file, java.util.UUID.nameUUIDFromBytes( ( "OfflinePlayer:" + name ).getBytes( java.nio.charset.StandardCharsets.UTF_8 ) ).toString() + s );
              if ( file1.exists() )