main : linter reports cleanup

use is not None instead of != None and remove a useless pass

src/unisync/main.py

@@ -15,14 +15,13 @@ def main():
 
     config_path: Path = Path("~/.config/unisync/config.ini").expanduser()
     # Check if --config is set
-    if cli_args.config != None and Path(cli_args.config).is_file():
+    if cli_args.config is not None and Path(cli_args.config).is_file():
         config = load_config(cli_args.config)
     elif config_path.is_file():
         config = load_config(str(config_path))
     else:
         # TODO replace the next line with something to do if no config file is found
         config = load_config(str(config_path))
-        pass
 
     # TODO make the command line arguments work and override the config options