Microgrid parameters: Make sure that all values are always shown with two decimals

All parameter values of all three modes within the "Microgrid" submenu must be rounded to two decimal places at all times, even if the decimals are "00".

Current state:
<img width="1371" height="799" alt="Image" src="https://github.com/user-attachments/assets/399b262e-5f96-42a0-88e1-66525db4626c" />