91pu.tw Search Helper per Ng Yuan Shen

- This addon will only work on 91pu.com.tw (91譜)
- Originally, if a user searched for sheet music in Simplified Mandarin/Chinese, the page would not show any results, even if the relevant sheet music is available.
- With the add-on, Simplified Mandarin/Chinese will be converted to Traditional Mandarin/Chinese upon submission of sheet music search form.
- User can set the extension active or disable through the browser action (extension pop-up).