[Bug]: Commandbar calculates an error after modifying the global text spacing

Library

Reac / v8 (@fluentui/react)

System Info

System:
    OS: Windows 10 10.0.22621
    CPU: (12) x64 11th Gen Intel(R) Core(TM) i5-11500 @ 2.70GHz
    Memory: 3.22 GB / 15.73 GB
  Browsers:
    Edge: Spartan (44.22621.2134.0), Chromium (116.0.1938.62)
    Internet Explorer: 11.0.22621.1

Are you reporting Accessibility issue?

None

Reproduction

https://github.com/microsoft/fluentui/assets/41287016/223d2016-1edd-43df-98db-5c1df1bdd7b8

Bug Description

Actual Behavior

After the word spacing is changed, the Commandbar is not calculated according to the changed width, resulting in an abnormal display. This can cause dyslexia for people with poor eyesight.

Expected Behavior

After changing the text spacing, Commandbar calculates the correct width, which can be recalculated based on the modified width after the calculation update is triggered

Here are the modified font styles:
*{line-height:1.5 !important;letter-spacing:0.12em !important;word-spacing:0.16em !important;}p{margin-bottom:2em !important;}

The following is the reproduced page address:
https://developer.microsoft.com/en-us/fluentui#/controls/web/commandbar

The following is a reproduced video:
https://github.com/microsoft/fluentui/assets/41287016/223d2016-1edd-43df-98db-5c1df1bdd7b8

Logs

No response

Requested priority

High

Products/sites affected

No response

Are you willing to submit a PR to fix?

no

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.

### Tasks

Use the linked Fluent UI Commandbar reproduction and apply the reported line-, letter-, and word-spacing styles to confirm the incorrect width calculation. Trace the Commandbar entry point that measures or recalculates its width; done means the layout updates to the correct width after text spacing changes.