Prompt Styling

## Summary
When prompt modifications have been made to words or phrases in the prompt, styling should be applied so that users can easily understand the modifiers

Sub issue of: #4475

## Intended Outcome
- When a prompt modifier is applied through the hover UI, the part of the prompt with the modifier applied is styled to match
- When a prompt modifier is applied through text in the prompt box, the part of the prompt with the modifier applied is styled to match

- Styles:
- Attention upweighting (++): green highlight
- Attention downweighting (--): red highlight
- use in .blend(): blue highlight
- use in .and(): blue highlight
- use in .swap(): blue highlight
- Make dynamic: purple highlight