Fix edge case in logging config handling

If the user cancelled the install process after the temp logging config
file was created, but before the installer executes, the pack would fail
to install on relaunch. Fix by allowing overwriting of the temp file.

launcher/src/main/java/com/skcraft/launcher/update/BaseUpdater.java

@@ -39,6 +39,7 @@
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
 import java.util.*;
 import java.util.logging.Level;
 
@@ -298,7 +299,7 @@ protected void installLibraries(@NonNull Installer installer,
                 // Use our embedded replacement
 
                 Path tempFile = installer.getTempDir().toPath().resolve(file.getId());
-                Files.copy(embeddedConfig, tempFile);
+                Files.copy(embeddedConfig, tempFile, StandardCopyOption.REPLACE_EXISTING);
 
                 log.info("Substituting embedded logging config " + file.getId());
                 installer.queue(new FileMover(tempFile.toFile(), targetFile));