Add a toggle to disable off-target text and number truncation improvement

[zefirless]

Nice addon. Hope I can be of some help. Please let me know if this modification aligns with your coding style, and if there are any issues. Thank you.

• Add a toggle to the options to enable or disable off-target text
• Add support for East Asian numeral formatting conventions to the number truncation feature
  1. Change the option type of 'Truncate Number' from toggle to select to specify the truncate method.
  2. Replace the block of truncation code with a separate function