Added a new method `split_trigger_and_args` to the `BaseCommand` class, which splits message content into a matched keyword and arguments. This enhancement allows for better handling of command triggers and arguments across various command classes, ensuring that multi-word triggers are prioritized and leading characters are stripped appropriately. Updated the `ChannelsCommand`, `DiceCommand`, `HackerCommand`, `MultitestCommand`, `RollCommand`, and `TraceCommand` classes to utilize this new method for cleaner and more consistent command execution logic.