Support special characters in tags

### Current Behavior

We have been using the following project tag convention for a while now, primarily programmatically via the Dependency Track REST API
- `org:`
- `team:`
- etc

When using the DTrack UI to edit a projects tags, it currently interprets `:` as a token ending character and terminates the tag entry.

### Proposed Behavior

Allow for special characters, such as `:` to be used within the tag name

### Checklist

- [x] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [x] I have checked the [existing issues](https://github.com/DependencyTrack/frontend/issues) for whether this enhancement was already requested