Support flexible decimal places in calculation results

[ss818]

Current calculator only supports fixed decimal places in calculation results, which is not ideal in some cases.

For integer calculations like counting number of people, showing results as decimals is not intuitive.

On the other hand, for high precision decimal calculations, the fixed decimal places may not be enough.

It would be better if the calculator can determine decimal places dynamically based on calculation values:

• If the result is an integer (no decimal part), show as integer.
• If the decimal part is between 0 to 3 digits long, show that number of decimal places.
• Allow user to manually specify decimal places if needed.

This will make the calculator more user friendly in different usage scenarios. Some examples:

• When calculating number of apples from integer quantities, result should be integer.
• For currency conversion, show 2 decimal places by default for amounts.
• Engineering/scientific calculations may require more than 2 decimal places.

Please consider adding this flexibility to automatically or manually determine decimal places of results. A smart handling of decimal places will enhance user experience.

[ss818]

The issue has been successfully resolved, and the latest update has made the plugin even better. It significantly enhances work efficiency and user experience.