Add support for normal comments

### Describe the feature

As mentioned in #198, the Better Jinja extension, which is a required dependency for this one, makes it so that `Ctrl + /` adds a Jinja comment, instead of a regular SQL comment. This is undesirable in most cases. Can you please fix this?

You could either use the required dependency or implement a fix in this extension that either restores `--` comments for `Ctrl + /` or adds a new hotkey for "normal" SQL comments?

Unfortunately, the Better Jinja extension is no longer maintained and there are a bunch of PRs piling up without response, so this issue most likely won't be fixed upstream. Someone's already made an issue here, with no response:
https://github.com/samuelcolvin/jinjahtml-vscode/issues/155

### Describe alternatives you've considered

_No response_

### Who will benefit?

All users of this extension.

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!