fix: Follow user configured number format.

[nstrandm]

Fix for issue #1010: Number format not following user profile settings.

Updated the numberFormat method to respect Home Assistant's user profile number_format setting. The card now correctly formats numbers based on the user's locale preferences.

Changes:
Rewrote numberFormat() method in main.js to read hass.locale.number_format and apply the appropriate formatting.
All displayed numbers (state values, Y-axis labels, min/max/avg) now respect user preferences.

Fixes #1010

🤖 Generated with Claude Code

[ildar170975]

AI-generated code is not accepted, sorry.

[nstrandm]

@ildar170975 even if I have reviewed and tested the code?

[ildar170975]

It will be reviewed. But this cannot be an excuse for people using AI.
Also, I need to warn you that there are ongoing works to add a similar functionality based on native hass functions which will give better and more expected results than just following user-level settings.
Please check available hass methods allowing to get a properly formatted state and attribute value, with or without a unit (including “..ToParts” methods which are currently being added to Frontend).

[ildar170975]

@nstrandm
Hello! Please try #1233