"float_precision" not displaying trailing zeroes

[dewi-ny-je]

Checklist

• I updated the card to the latest version available
• I cleared the cache of my browser
• I verified that I'm really running the lastest version in my browser console
• I checked if there is another issue opened with the same problem

Describe the bug
float_precision rounds as expected, but then omits trailing zeores

Version of the card
Version: 2.1.2

To Reproduce
This is the configuration I used:

type: custom:apexcharts-card
header:
  show: true
  show_states: true
series:
  - entity: sensor.fuel_prices_fuelprices_directlease_1561_devicetracker
# value: 1.899
    float_precision: 2

Screenshots

If I use
float_precision: 3 I get:

Expected behavior
It should show 1.90 and not 1.9 when set with float_precision: 2

Desktop (please complete the following information):

• Browser chrome
• Version 131