[Icons] themeColor of the Font and SVG icon components cannot be updated dynamically

[georgi-sla]

Describe the bug
Currently, when the developer tries to modify the themeColor property dynamically, the color of the SVGIconComponent or the IconComponent is not updated as expected.

To Reproduce

1. Create either an SVGIconComponent or an IconComponent.
2. Set the themeColor property.
3. Try to modify the themeColor property dynamically.

Please, check out the following StackBlitz demo: https://stackblitz.com/edit/angular-hpldja-uxskbg

Expected behavior
Modifying the themeColor property dynamically should also update the color of the icon.

Additional context
It seems that the old class is not being removed when the themeColor property is adjusted:

Workaround: https://stackblitz.com/edit/angular-rlz6sq-86ugc4

[dtopalov]

fixed in v.14.3.0