refactor: ♻️ lowered the log level from fatal to error (#304)

It can be confusing when the assert is triggered in the utility function, as the error message is naturally more generic. Reducing it to just "error" allows the calling function to assert and provide a more detailed error message.

Author: KANAjetzt

addons/mod_loader/internal/path.gd

@@ -113,7 +113,7 @@ static func get_file_paths_in_dir(src_dir_path: String) -> Array:
 	var error := directory.open(src_dir_path)
 
 	if not error  == OK:
-		ModLoaderLog.fatal("Encountered an error (%s) when attempting to open a directory, with the path: %s" % [error, src_dir_path], LOG_NAME)
+		ModLoaderLog.error("Encountered an error (%s) when attempting to open a directory, with the path: %s" % [error, src_dir_path], LOG_NAME)
 		return file_paths
 
 	directory.list_dir_begin()
@@ -134,7 +134,7 @@ static func get_dir_paths_in_dir(src_dir_path: String) -> Array:
 	var error := directory.open(src_dir_path)
 
 	if not error == OK:
-		ModLoaderLog.fatal("Encountered an error (%s) when attempting to open a directory, with the path: %s" % [error, src_dir_path], LOG_NAME)
+		ModLoaderLog.error("Encountered an error (%s) when attempting to open a directory, with the path: %s" % [error, src_dir_path], LOG_NAME)
 		return dir_paths
 
 	directory.list_dir_begin()