Support for Keyword Search Highlighting

[cnfczn]

I would like to implement a feature that allows for keyword search highlighting within the markdown_widget package. The goal is to enable users to input a keyword and have all occurrences of that keyword highlighted in the rendered Markdown content.

Additionally, I would like to include functionality for navigating to the next and previous occurrences of the highlighted keyword.

However, I am unsure how to implement this feature effectively. Any guidance or suggestions on how to achieve this would be greatly appreciated.

Thank you!