Do not require double colon to match

Please looking at the parser, and from my manual testing, if I have e.g.
```js
// TODO this must be fixed
```

it won't be found as your parser (apologies if I'm wrong) is looking for

```js
const todoRegex = new RegExp(`\\b(${keywordsPattern}):(.*)`, 'i'); // 'i' = case-insensitive
```

so it requires the `:` after the keyword. Could we please remove this restriction?